Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 104998: Hi I need help with this problem
What is 7-2n=n-14?
Click here to see answer by checkley75(3666)

Question 105003: Can you help me with this problem
It is 2(4-2r)=-2(r+5)
Click here to see answer by doukungfoo(195)

Question 105071: Solve. 6(2 – x) = 4x
Help please!!
Click here to see answer by jim_thompson5910(28717)

Question 105032: A straight line with a slope of 5 contains the points(1,2) and (3,k) find the value of k
Click here to see answer by ankor@dixie-net.com(15747)

Question 105212: Write an algebraic expression for: 6 less than twice a number
Click here to see answer by edjones(7569)

Question 105210: Solve the given equation: 5y - 6 = 2y - 12
Click here to see answer by MathLover1(6815)

Question 105208: Barbara wants to leave a 15% tip on a bill of $82.50. Explain how she can figure this tip by estimation.

Click here to see answer by edjones(7569)

Question 105214: Simplify: 3(x-1) - 2(-x+2)

Click here to see answer by MathLover1(6815)

Question 105213: If x = -2, evaluate -4x-2

Click here to see answer by MathLover1(6815)

Question 105209: Solve the equation: 2x - 5 = -13

Click here to see answer by checkley75(3666)

Question 105053: 4x-(x+14)=4x+3
Click here to see answer by kmcruz09(38)

Question 105262: x+13=23 ?
Click here to see answer by jim_thompson5910(28717)

Question 105247: Mrs. centeno invested half of her money at 7 percent and half at 8 percent per year, her annual income from the two investment was 7,500.00 how much did she invest at each rate?
Click here to see answer by elima(1433)

Question 105308: Solve for b:

2b+C=3d

Click here to see answer by jim_thompson5910(28717)

Question 105321: 4(3x-1)-2(x-3)=48
Click here to see answer by jim_thompson5910(28717)

Question 105320: 1/4 (x+2) = 1/2 (x+6)

Click here to see answer by jim_thompson5910(28717)

Question 105319: 6x-2=9x+5
Click here to see answer by jim_thompson5910(28717)

Question 105318: (2x-6)/4=2
Click here to see answer by jim_thompson5910(28717)

Question 105322: R=3-a(b+2d)
solve for b
Click here to see answer by jim_thompson5910(28717)

Question 105249: Hello, I need help with graphing, I get so frustrated.
1. Graph the linear equations in two variables.
y=-8x-3
2. Graph the linear equation.
y=7
3. Find the slope of the line passing through the pair of points or state that the slope is undefined.
(-2,2) and (7,-4)
Please Help
Click here to see answer by elima(1433)

Question 105300: A car rental agency advertised rentin a Buick Century for $24.95 per day and $.29 per mile. If you rent this car for 1 week how manywhole miles can you drive on a $300 budget?
Click here to see answer by checkley75(3666)

Question 105303: A rectangular tank is 20 feet wide, 40 feet long and 6 feet deep. Determine the number of kiloliters of water the tank holds.
Click here to see answer by edjones(7569)

Question 105019: d/.2=3d+2.1
Click here to see answer by HyperBrain(694)

Question 105302: R=3 - a(b=2d)
solve for b
Click here to see answer by edjones(7569)

Question 103435: -47=9y
Click here to see answer by HyperBrain(694)

Question 105352: i don't really kno which algebra it is.

Click here to see answer by an(14)

Question 105370: 2^x=8
Click here to see answer by checkley75(3666)

Question 105359: 13+N=2N
Click here to see answer by an(14)

Question 105375: x^3=27
Click here to see answer by Earlsdon(6294)

Question 105422: x2-6x+5=o
Click here to see answer by checkley75(3666)

Question 105441: helen has $1.35 in her bank in nickels and dimes. there are 9 more nickels than dimes. find the number she has of each coin.
(can you help me with this problem?)
Click here to see answer by checkley75(3666)

Question 105444: v-4(4-v)=-2(2v-1)
Click here to see answer by jim_thompson5910(28717)

Question 105455: 3(x-0.87)-2x=4.98
Click here to see answer by checkley75(3666)

Question 105464: P=21+2w
solve for w
Click here to see answer by jim_thompson5910(28717)

Question 105468: 2x
-- = 40
5

Click here to see answer by checkley75(3666)

Question 105465: The states of Hawaii and Pennsylvania spend a total of $60.9 million for tourism. The state of Hawaii spends 8.1 million less than twice the amount of money that Pennsylvania spends.
Find the amount that each state spends on tourism
Click here to see answer by checkley75(3666)

Question 105495: 3x2-6x + 9
x= -2
(thats suppose to be square x (x2) not sure how to show it that way
Click here to see answer by checkley75(3666)

Question 105498: 2/9X = 1/7
round to hundredths
Click here to see answer by checkley75(3666)

Question 105512: the gym is filled with 215 student and adults. Student tickets are $.50 and adult tickets are $2.00. You collected $250.00. how many adults and how many students purchased tickets. I figured the answer I just need to know the equations. Adults 95 and students 120.
Click here to see answer by jim_thompson5910(28717)

Question 105515: solve this equation for the given variable:
dx + fy = g
need to solve for x
Click here to see answer by jim_thompson5910(28717)

Question 105538: please help me solve this equasion:
(b)/2+(b-1)/3=(b-2)/4
THANK YOU!!!
Click here to see answer by HyperBrain(694)

Question 102918: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
Click here to see answer by HyperBrain(694)

Question 105539: The coin box of a vending machine contains 6 times as many quarters as dimes. If the total amount of money in quarters and dimes is $28.80, how many quarters and how many dimes are in the box?
Click here to see answer by theidiot(3)

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