Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 843800: Pre-Algebra Chapter 3 Resource Book worksheet practice-lesson 3.3 have to solve the equation and check your solution,
question #5. 12x-28=-63+7x
question #13. -3(8x=11)=6(-4x-13)
Click here to see answer by rfer(16322)

Question 843788: X(4-k)=p for the value of x
Click here to see answer by rfer(16322)

Question 843852: 8-3(x-4)=2x
Click here to see answer by Fombitz(32388)

Question 843882: Find the vertical asymptote(s) of the graph of the function.
K(x)= x^3/ 2x^2-x-6
Click here to see answer by smith123(15)

Question 843917: 2^x+3^x=4

Click here to see answer by Fombitz(32388)

Question 843965: given the function defined by the equation f(x) 7x+50 determine f(2x)
Click here to see answer by Fombitz(32388)

Question 843947: The value of an uncirculated 'Mint state-65' 1950 Jefferson nickle minted in Denver is 7/4 the value a 1945 nickle minted in Philadelphia in similar condition. Together the total value of the two coins are $44. What is the value of each coin?

( I just need help solving this or laying it out in the correct order of operation. ) Thank you.
Click here to see answer by josmiceli(19441)

Question 844023: What is the value of x in the equation 3(x + 2) = 6x + 9
Click here to see answer by ernestoloza@live.com(1)

Question 844039: solve the simultaneous equation:
4x-3y=7
2x+2y=7
Click here to see answer by Fombitz(32388)

Question 844126: 4/9-2/3+6
I tried 4/9-6/9+6
since 3 can go into 9 I multiplied the numerators by 3..please help I do not know how to get 5 7/9 as the answer.
Click here to see answer by Alan3354(69443)

Question 844140: (3/4-1)+(3/8+1/2)
I tried 1*2/4-->2/8
16/8+2/8=18/8 *divided by 2*= 9/4
please help, I can not get 5/8 as an answer
Click here to see answer by Alan3354(69443)

Question 844144: (3/4-1)+(3/8+1/2)
please help...I am stuck on the 1st parenthesis, not sure how to simplify it
Click here to see answer by Alan3354(69443)

Question 844143: A triangle has an height of 14m and a base of 25m. What is the cost to make such a triangle out of 12 gauge sheet metal that cost $4 per m^2
I tried A=1/2(25)(14)*m^2 and I got stuck there..
please help I can not get $700 as the answer.
Click here to see answer by josgarithmetic(39617)

Question 844183: The figure below shows the graph of a rational function with vertical asymptotes x=1,x=5, and horizontal asymptote y=0. The graph does not have an x-intercept, and it passes through the point (3,1). Write in simple form
Click here to see answer by josgarithmetic(39617)

Question 844271: Sales employees at a furniture store are given two options for their wages:
Plan A: A salary of $1000 per month plus a commission of 5% of their total sales.
Plan B: A salary of $1300 per month plus a commission of 3% of their total sales.
For what total sales amount does the employee earn the same wages under Plan A or Plan B? What would those wages be?
Click here to see answer by ewatrrr(24785)

Question 844303: So I'm trying to learn Fractional Equations, and one part gets me.
I have to multiply the whole equation by (1-x)(1+x) to get rid of the denominators.
The one side of the equation is 4.
How do I multiply (4)(1-x)(1+x)? Do I foil out the two binomials first and then multiply that by the 4, or is it something else?
Click here to see answer by josmiceli(19441)

Question 844315: Can you help me with this problem:
Look at the following number set: 6 2 8 10 5
Using the numbers above, apply a combination of operations (addition, subtraction, multiplication, and division) and grouping (parentheses)so that each number is used once, used in the order listed above, and the result of the expression is equal to the values below.
Part A: -39
Part B: 16
Part C: 8
Thanks for your help!
Click here to see answer by ewatrrr(24785)

Question 844318: How to solve the fractional equation:
If (1/1-x)+(1/1+x)=4 then x4 = what?
Click here to see answer by ewatrrr(24785)

Question 844338: determin the equation of g(x) from translating the function f(x)=x^2+1 upwards 15 units
Click here to see answer by ewatrrr(24785)

Question 844371: I have to find the zeros of the one part of the equation, which is r^4-13r^2+36
Now, after factoring by grouping, I got that the zeros are -3, -2, 2, and 3. But the closest choice on my multiple choice homework doesn't show that as an option, the closest one is what I got, but also a zero. Did I do something wrong or am I missing something that a zero is one of the zeros of the equation?
Click here to see answer by ewatrrr(24785)

Question 844387: Ten less than three times a number is 25. What is the number?
That's the question ^. I tried:
3-10n=25
3+3-10n=25+3
10n/10=28/10
n=2.8
3-10x2.8= -25 .... I've tried switching it so it's 10-3n=25, or 10n-3=25. I think I'm doing it wrong because I Don't really understand what 10 less than 3 means; please help me!
Click here to see answer by Alan3354(69443)

Question 844399: This question is a common mistake in algebra (3a)^4 = 3a^4
Click here to see answer by Alan3354(69443)

Question 844407: 2x-3.5=x-3.5
Click here to see answer by leducanh1992(9)

Question 844404: Fifteen more than five times a number is equal to the product of ten and the number. What is the number?
Am I correct....
5n+15=10
5n=10-15
5n=-5
5n=-5/5
n=-1

Click here to see answer by leducanh1992(9)

Question 844446: 3x+8y=3
4x+3y=3
Click here to see answer by josgarithmetic(39617)

Question 844492: dy/dx=1/y(y^4/x^2-y^2/2x) given v= y^2/2x
Click here to see answer by Fombitz(32388)

Question 844250: A=(pi)r(squared) SOLVE for r
Click here to see answer by Fombitz(32388)

Question 844495: Solve the general solution of y'''+ 4y'= x+3cosx by undertermine
coeeficient.
Find the particular solution of y'''+y'=tanx -pi/2 by variation
Click here to see answer by Edwin McCravy(20055)

Question 844770: six students were given 20 minutes to clean up the classroom after an eraser fight. They were angry and named 3 other accomplices. The principal added the accomplices to the cleanup crew and changed the time limit. How much time did she give them to complete the job?
Click here to see answer by josgarithmetic(39617)

Question 844812: i was wondering how to solve equations like: -x=32. Im very confused on how to do it. Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 844789: How would five times the sum of twice a number,x, and two is ten look in number form
Click here to see answer by Fombitz(32388)

Question 844944: -(X+3)-3X(-2X+7)
Click here to see answer by Fombitz(32388)

Question 845057: hello, how do i solve this please:
(1/a + 1/b)x=1 for x
I would like to learn the steps as well.
Thanks.
Click here to see answer by richard1234(7193)

Question 845057: hello, how do i solve this please:
(1/a + 1/b)x=1 for x
I would like to learn the steps as well.
Thanks.
Click here to see answer by richwmiller(17219)

Question 845115: -3/4t<30
Click here to see answer by Fombitz(32388)

Question 845206: what is the value of x to make 3x-5=2x+14
Click here to see answer by pmesler(52)

Question 845277: -6(3-3a)-8(6a+5)=32
Click here to see answer by jim_thompson5910(35256)

Question 845280: 6x-2x+8=x+5
Click here to see answer by jim_thompson5910(35256)

Question 845254: if x=9 and y=6 evaluate the expression
8-y
x-5
Click here to see answer by pmesler(52)

Question 845390: Solve for X....
[x/(x+314)]*100 = 42

Pls show steps if possible.
Click here to see answer by josgarithmetic(39617)

Question 845397: Solve this plz:
P^2=3+13P
Click here to see answer by Fombitz(32388)

Question 845482: 6/x+1 - 7/x-2 = - 3 /1-x
Click here to see answer by Fombitz(32388)

Question 845555: the area of a rectangular picture frame is 80 in^2. if area function is A(w)= W^2+2W, where W is the width, find the width and length.

Click here to see answer by ewatrrr(24785)

Question 845561: I need to solve this problem 2/3(2x-1)+3=4(2x-4)

Click here to see answer by ewatrrr(24785)

Question 845561: I need to solve this problem 2/3(2x-1)+3=4(2x-4)

Click here to see answer by rfer(16322)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580