Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 676892: I need to figure out how to explain how I solve 500 = 245 + 5x but I don't even know how to do it?? It's due tomorrow, so please help soon..
Click here to see answer by lynnlo(4176)

Question 676928: 9(x+1)=9x+1
Click here to see answer by littlebitlove(26)

Question 676928: 9(x+1)=9x+1
Click here to see answer by MathLover1(20849)

Question 675926: I need help solving this problem.
If y varies directly as x and y = 14 when x = 7, find x when y is 30.

Click here to see answer by littlebitlove(26)

Question 676939: Q: How would you put this in symbols, the larger of two numbers is 32. If three times the larger is 6 more than eight times the smaller

Click here to see answer by ReadingBoosters(3246)

Question 677038: 25-9x=2
Click here to see answer by Isreal(1)

Question 677094: You have at least $50 in change in your piggy bank, consisting of nickels and pennies. Write an inequality that shows the different number of coins in your piggy bank.
Click here to see answer by stanbon(75887)

Question 677093: 2x(4Xsquare+5)(-6Xcube+5)

Click here to see answer by stanbon(75887)

Question 677100: 2X(4Xsquare+5)(-6Xcube+5)

Click here to see answer by stanbon(75887)

Question 677149: How would you graph 5y-15=0
Click here to see answer by ReadingBoosters(3246)

Question 677156: I have to write the phrases in my book as an algebraic expression and simplify if possible. The phrase I am having trouble with is "half a number minus the product of the number and eight". I think it means 0.5x-(x*8) which I think simplifies to 0.5x-x*-8= -0.5x*-8. The multiplication in the problem is confusing me though because I am not sure if you actually can simplify the parentheses out with a multiplication problem the same way you do with addition when it is in parentheses. I want to make sure I am understanding this correctly before I risk running into a similar question on the test.
Click here to see answer by ReadingBoosters(3246)

Question 677255: 7/2x-1=2x+5
Click here to see answer by jim_thompson5910(35256)

Question 677258: 4x^3+3x+5�2x-3
Click here to see answer by jim_thompson5910(35256)

Question 677258: 4x^3+3x+5�2x-3
Click here to see answer by lynnlo(4176)

Question 677274: I need help solving for y
-3x+y=2
im real confused on what to do with the 3x and the 2, please help
Click here to see answer by jim_thompson5910(35256)

Question 677263: Hello. I am trying to figure out these 4 problems...
2x+5=x^2
x^2+3x=5
f(x) = 4(x-3)^2+5
Find quadratic function (0,0), (3,0), and (5,2)
thank you.
Click here to see answer by lynnlo(4176)

Question 677318: my first ever question, i need to find out how to solve for y in this equation
-3x+2y=2
my homework is to graph a line given its equation so my answer should come out to be y=mx+b or if if the y intercept is negative it will be y=mx-b, please help me and thank you
Click here to see answer by jim_thompson5910(35256)

Question 677331: I am trying to help my son do 5 step method equations.
The question is
A large soda costs $1 more than a hamburger. If 4 hamburges and 2 sodas cost $14, what is the cost of each? Show all steps.
Can someone help me so I know how to help him with the rest of his problems. Thanks, Kami
Click here to see answer by aaronwiz(69)

Question 677349: Agian I am solving for y=mx+b
x-4y=8
I don't know wether to slove for x or y, please help
Click here to see answer by jim_thompson5910(35256)

Question 677393: 3x+4-3=5x+2x What is x?
Click here to see answer by jim_thompson5910(35256)

Question 677454: if -2x=4 what is the value of 3x-(5+x)
Click here to see answer by jim_thompson5910(35256)

Question 677686: Solve 1/a - 1/6 = 1/3
Click here to see answer by lynnlo(4176)

Question 676998: What is 4x-148=2x+566
Click here to see answer by ReadingBoosters(3246)

Question 677744: 4^7x = 7000

Click here to see answer by jim_thompson5910(35256)

Question 677744: 4^7x = 7000

Click here to see answer by Alan3354(69443)

Question 677788: -40=5(2a-1)^3
Does the exponent belong with the 5 as well as the (21-1)?
Click here to see answer by Alan3354(69443)

Question 677807: Hi I need to know how to solve 3 1/9 + n = 3 1/4
Click here to see answer by Alan3354(69443)

Question 677856: Need help getting y by itself?
2x-3y=9
x+2y-4=0
3x+4y=12
im not sure wether i need to simplfy them or leave them as they are, please help me, thank you
Click here to see answer by Alan3354(69443)

Question 678021: x + 2/9 = 5 How do I solve this? The homework did not specify any steps to solve it so I'm clueless as to how. I have a few of these problems so if someone shows me how to do one of them, I'll be able to do that rest easily. It only says to multiply the denominator by each side?...
Click here to see answer by ReadingBoosters(3246)

Question 678038: 3/5(2x-1/2) =< 3/4x
Click here to see answer by ReadingBoosters(3246)

Question 678069: 9-(4/5)(u-3)=1
Click here to see answer by ReadingBoosters(3246)

Question 678246: I need help solving c/30=-1/10 solve for "c"
Click here to see answer by MathLover1(20849)

Question 678264: What values for q (0 < q < 2p) satisfy the equation?
2√2 sin q + 2 = 0
Click here to see answer by pmatei(79)

Question 678291: What is 8+(-9)+6(-4)+1
Click here to see answer by jim_thompson5910(35256)

Question 678315: The senior classes at High School A and High School B planned separate trips to New York City. The senior class at High School A rented and filled 1 van and 6 buses with 372 students. High School B rented and filled 4 vans and 12 buses with 780 students. Each van and each bus carried the same number of students. How many students can a van carry? How many students can a bus carry?

Click here to see answer by checkley79(3341)

Question 678252: Solving Equations
X term is on both sides and numbers included.
5x-1=3x and
8x-6+2x=13+5x
Click here to see answer by checkley79(3341)

Question 678360: -3/5x=3/10
Click here to see answer by Alan3354(69443)

Question 678442: solve the following expression 5(B-4)=10
solve the following equation for the variable I
5(B-4)=10
complete the following table for the equation y = x-3
Table: X | Y
-----
-1|
0|
4|
Click here to see answer by ReadingBoosters(3246)

Question 678418: What is the equation of 4-5c=-11
Click here to see answer by rfer(16322)

Question 678533: What is the error in this equation?
m/3 - 9 = -21
m/3 - 9 + 9 = -21 + 9
m/3 = -12
m = -4
Click here to see answer by rfer(16322)

Question 678545: find 3 consecutive intergers whose sum is -33
Click here to see answer by jim_thompson5910(35256)

Question 678509: What's an example of an expression with four terms that can be simplified to an expression with two terms?

Click here to see answer by ReadingBoosters(3246)

Question 678721: during the month of January, a travel agent sold 14 moore cruises than resort cavactions. If the total amount vacations sold were 72. How many were cruises and how many were resrt?
2. A coffoee shop serves 3 times as many cups of regular coffee as decaffeinated coffee. If the shop serves 372 cups of coffee a day. How many are regular and how many are decaffeinated?
3.
Click here to see answer by rm29924(97)

Question 678701: If the volume of a sphere is 500pi/3 meters cubed, what is the diameter of the sphere?
Click here to see answer by jim_thompson5910(35256)

Question 678754: Is 5 a solution to 7x plus 7 equals 40?
Click here to see answer by jim_thompson5910(35256)

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, 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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, 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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