Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 321963: Please help me solve this problem (finding the pronumeral value) and explain the solution:
7(b-3)= -28
Click here to see answer by nyc_function(2733)

Question 322090: The angle between the lines represented by x²+3xy+2y²=0 is ?
Click here to see answer by Fombitz(13828)

Question 322139: x + 3=7
Click here to see answer by Alan3354(30993)

Question 322064: how do you complete the trinomial sqaure when you are given the problem x^2-4x=8?
Click here to see answer by checkley77(12569)

Question 322232: The product of two numbers is 60. If one of these numbers is 2/3 what is the other number?
Click here to see answer by Fombitz(13828)

Question 322175: complete the square 6xsquared+5x-4=0
Click here to see answer by Fombitz(13828)

Question 322293: What is 7(5c -1)-16=33C+7
Click here to see answer by unlockmath(1599)

Question 322311: I am having a problem with this question. This guy took a trip two times. The first time he was charged $210 for 625 miles. The next time he was charged S133.5 for 370 miles. Whats is the base rate, and how much he was charged for each mile? What is the slope?
Click here to see answer by mananth(12270)

Question 322310: I am having a problem with this question. This guy took a trip two times. The first time he was charged $210 for 625 miles. The next time he was charged S133.5 for 370 miles. Whats is the base rate, and how much he was charged for each mile
Click here to see answer by vleith(2825)

Question 322345: Tickets to a concert sere sold to adults for $3 and to students for $2. Is the total receipts were $824, and twice as many adult tickets were sold as student tickets, how many of each were sold?
Click here to see answer by Fombitz(13828)

Question 322337: if 5/x = 24/5, what is x?
Click here to see answer by Fombitz(13828)

Question 322394: How Do I simplify the following equation:
4 - 4[5 - (3x + 2)]
Click here to see answer by solver91311(16885)

Question 322533: you are running water into the laundry sink to get a mixture that is one half cold water and one half hot water the hot water is slow it runs at a rate of 7.8 liters per minute so you turn it on first. 2 minutes later you turn on the cold water witch runs at a rate of 12.3 liters per minute. At wat time should you turn the two faucets off?
Click here to see answer by stanbon(57347)

Question 322557: a sporting goods store receives a shipment of 124 bags. two types of bags type a 38.50 type b 22.50 total cost is 3430 how many of each type?
Click here to see answer by stanbon(57347)

Question 322668: How do I solve 2x^-96=0
Click here to see answer by solver91311(16885)

Question 322745: P=sigma*A*e*T^4 solve for T how would I simplify this having T by itself?
Click here to see answer by Fombitz(13828)

Question 322812: 5x+2-7=-4 answer that solution set
Click here to see answer by jim_thompson5910(28595)

Question 322832: E=1/2J(C-D) FIND SOLUTION FOR C
Click here to see answer by Alan3354(30993)

Question 323015: 5(2x - 7) = 33 - 3(6x + 4)
Click here to see answer by stanbon(57347)

Question 322973: 1=1/3a-5
Click here to see answer by Fombitz(13828)

Question 323033: Two planes left an airport at noon. One flew east at a certain speed and the
other flew west at twice the speed.The planes were 2700 mi apart in 3 h. How
fast was each plane flying?
Click here to see answer by rfer(12657)

Question 322936: Miguel's insurance company will replace his car if repair costs exceed 80% of the car's value. The car recently sustained $6400 worth of damage, but it was not replaced. What was the value of his car?

Click here to see answer by rfer(12657)

Question 322974: 2c=14=6-4c
Click here to see answer by Alan3354(30993)

Question 323067: Evaluate the following expression for a = 6 and b = -2
3a + b^2 + 4b – a
Click here to see answer by QH(50)

Question 323067: Evaluate the following expression for a = 6 and b = -2
3a + b^2 + 4b – a
Click here to see answer by rapaljer(4667)

Question 322943: Find the values of x and y that solve the following system of equations:
8x+7y=12
-7x-4y=-2
Click here to see answer by ankor@dixie-net.com(15652)

Question 323236: The perimeter of a pool table is 30ft. The table is twice as long as it is wide. What is the length of the pool table?
Click here to see answer by rfer(12657)

Question 323247: Can you help me with this:
Which property is illustrated by the following:
6(5.4)=(5.4)6
Thanks
Click here to see answer by jim_thompson5910(28595)

Question 323250: Please help me with this question: Let C={l,i,n,e} find n(c)
Thanks
Click here to see answer by jim_thompson5910(28595)

Question 323195: Evaluate the following expression for a = -4 and c = 3
5a – 4c + 6(a – 5c) – 2(a + 3)
Click here to see answer by rfer(12657)

Question 323194: Evaluate the following expression for n = -3 and p = 4
3(2n – p) + 5p – 2(n + 3p)
Click here to see answer by rfer(12657)

Question 323262: Please identify the operations performed on each side of the below equation.
3(x – 1) + 4(2x + 1) = 11x + 1
How can you make this equation into a function or function(s)?
This is what I come up with, but not sure if it is correct.
3 ( x - 1) + 4 ( 2x + 1) = 11x +1 Original Problem
(3x - 3) + (8x + 4) = 11x + 1 Distributive
3x - 3 + 8x + 4 = 11x + 1 Associative
11x + 1 = 11x + 1 Commutative
11x + 1 = 11x + 1 Subtraction to cancel the 1's out
11x = 11x Division to find x
11x/11
Answer: x = 1

Click here to see answer by Alan3354(30993)

Question 323263: 3(4-y)=5(y+2)
Click here to see answer by jim_thompson5910(28595)

Question 323273: Solve the equation and check my solution
A grocery store sold 19 more cases of coke than sprite. given that 43 cases were sold, find the number of cases coke sold.
Click here to see answer by rfer(12657)

Question 323298: Use the vertex formula to determine the vertex of the graph of f(x)=x^2=10x and write the function in standard form.
thanks
cz
Click here to see answer by stanbon(57347)

Question 323305: 1/2x - 2 = 1/3(x - 2)
Click here to see answer by rfer(12657)

Question 323659: What is the equation of the line that passes through (3, -8) and (-6,4) ?
Click here to see answer by solver91311(16885)

Question 323659: What is the equation of the line that passes through (3, -8) and (-6,4) ?
Click here to see answer by JBarnum(2044)

Question 323696: an angry construction worker throws his wrench downward from a height of 128 feet with an initial velocity of 32 feet per second. The height of the wrench above the ground after t seconds is given by S(t) = -16tsquared -32t +128
Click here to see answer by stanbon(57347)

Question 323712: -(m – 13) = -13m + 1
Click here to see answer by Fombitz(13828)

Question 323728: 7(3x + 16) + 8 = -90
Click here to see answer by Fombitz(13828)

Question 323733: -3(-9x + 2) = -x – 34
Click here to see answer by rfer(12657)

Question 323732: -5(3x + 5) = -10x + 20
Click here to see answer by rfer(12657)

Question 323730: 5(5r – 4) + 8 = 38
Click here to see answer by rfer(12657)

Question 323729: -5(5n – 7) – 4 = 56
Click here to see answer by rfer(12657)

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