Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 178001: 2x-3y+z=5
x +3y+8z =22
3x-y +2z = 12

please help thank you!
Click here to see answer by Fombitz(32388)

Question 178225: i need to understand how to do these problems i have tried to use the instructions in book but i just get confused
Click here to see answer by solver91311(24713)

Question 178226: 2X+5 = 10 SOLVE X
Click here to see answer by fulio1(4)

Question 178227: 4x+4y= 6 3x-5y= 7 solve x, y

Click here to see answer by jojo14344(1513)

Question 178265: (y-9)-(y+8)=10y
Click here to see answer by jim_thompson5910(35256)

Question 178267: -1/9(x-27)+1/3(x+3)=x+11
Click here to see answer by EMStelley(208)

Question 178264: 7r+1=7s solve for r
Click here to see answer by jim_thompson5910(35256)

Question 178296: -(6y+2)-(-5y-5)=-5
Click here to see answer by jim_thompson5910(35256)

Question 178301: 6x=5x-5
Click here to see answer by jim_thompson5910(35256)

Question 178305: 6-4x=7x-9x-4
Click here to see answer by jim_thompson5910(35256)

Question 178310: 11/x+2=5/x
Click here to see answer by jim_thompson5910(35256)

Question 178327: -1/6(x-12)+1/2(x+2)=x+15
Click here to see answer by jim_thompson5910(35256)

Question 178052: please help solve

http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=178098

thanks!
Click here to see answer by Alan3354(69443)

Question 178349: I cannot remeber how to solve equation with 3 variables. the problems are 6x+3y=12z
(2x+y)/4=z. I just had this last semester but didn't keep any of my work. This is for an astronomy paper that is due monday. will you help me please?
Click here to see answer by scott8148(6628)

Question 178402: u
---------- =4
u+1
u - ------
2
u/u-u+1/2=4
I am not sure if I wrote the equation correct so that is why I wrote it twice.
Thanks for your help.
April
Click here to see answer by jim_thompson5910(35256)

Question 178403: please help me solve this equation
0.6(x-50) = 18-0.3(40-10x)
Click here to see answer by jim_thompson5910(35256)

Question 178358: (x+8)/2-(x-4)/8=x/4
Click here to see answer by jim_thompson5910(35256)

Question 178357: (3x+1)/(4)-(x)/(5)=x-2
Click here to see answer by EMStelley(208)

Question 176898: x-3over5-1=x-5over4
Click here to see answer by EMStelley(208)

Question 178487: 5/4x+1/8x=11/8+x
Simply your anwser, type integer or a fraction
Click here to see answer by jim_thompson5910(35256)

Question 178523: Hi.
The width of a rectangle swimming pool is one-third its length. If its perimeter is 96 meters, find the dimensions of the pool.
Thanks.
H.C.
Click here to see answer by Mathtut(3670)

Question 178524: Hi.
An artist wants to frame a picture with a frame 2 inches wide. How wide will the framed picture be if the artist uses 70 inches of framing material?
Thanks.
H.C.
Click here to see answer by ankor@dixie-net.com(22740)

Question 178556: I am asking for help with these two equations. I did see them listed but need a more of a break to better understand how to solve them
6x+3y=12z
(2x+y)/4=z
Click here to see answer by jojo14344(1513)

Question 178595: Solve for x
6x+3y=12z
Click here to see answer by Mathtut(3670)

Question 178605: Find all solutions of the equation below. (If there are more answer boxes than answers, enter NONE in the extra boxes.)
x4 - 4096 = 0
x = (smaller real solution)
x = (larger real solution)
x = (smaller imaginary part)
x = (larger imaginary part)
i dont understand! could someone help explain it to me thanks!!!
Click here to see answer by stanbon(75887)

Question 178616: Hello.
Inheriting money: Paul split an inheritance between two investments, one paying 7% annual interest and the other 10%. He invested twice as much in the 10% investment as he did in the 7% investment. If his combined annual income form the two investments was $4,050, how much did he inherit?
Thanks.
H.C.
Click here to see answer by stanbon(75887)

Question 178619: Hello.
Storm research: During a storm, two teams of scientists leave a university at the same time to search for tornadoes. The first team travels east at 20 mph and the second travels west at 25 mph, as shown in the illustration. If their radios have a range of 90 miles, how long will it be before they lose radio contract?
Thanks.
H.C.
Click here to see answer by stanbon(75887)

Question 178621: Hello.
Computing Distance: At 2pm two cars leave Eagle River, WI, one headed north and one headed south. If the car headed north averages 50mph and the car headed south averages 60mph, when will the car be 165 miles apart?
Thanks.
H.C.
Click here to see answer by Zef(4)

Question 178617: Hello.
School Plays: At a school play, 140 tickets were sold, with total receipts of $290 If adult tickets cost $2.50 each and student tickets cost $1.50 each, how many adult tickets were sold?
Thanks
H.C.
Click here to see answer by Zef(4)

Question 178641: 9x+27=36
Click here to see answer by jim_thompson5910(35256)

Question 178641: 9x+27=36
Click here to see answer by Mathtut(3670)

Question 178596: Solve for x
(2x+y)/4=z
Click here to see answer by checkley75(3666)

Question 178667: Solving for X, what is X in the equation

Click here to see answer by Alan3354(69443)

Question 178674: Please show and tell me how to convert the fraction 341/120 into a usable fraction such as 2 3/8. If you get 2.84167 as the answer, what is that in fraction form such as inches?
Click here to see answer by Mathtut(3670)

Question 178686: please help me solve.

-7<3-2x<13

thanks!!
Click here to see answer by Edwin McCravy(20054)

Question 178707: A cashier has four times as many nickels as quarter. She has $3.60. How many of each coin does she have?
Click here to see answer by ptaylor(2198)

Question 178705: One-fourth of a number is 3 greater than one-sixth of it. Find the number.
Click here to see answer by ptaylor(2198)

Question 178709: A tire was sold for $35.65, which included the 4% state sales tax and an 11% federal tax. What was the original price of the tire before taxes?
Click here to see answer by Edwin McCravy(20054)

Question 178711: x=2y+5 ; solve for y.
whats the answer of this ?
Click here to see answer by Alan3354(69443)

Question 178711: x=2y+5 ; solve for y.
whats the answer of this ?
Click here to see answer by jojo14344(1513)

Question 178708: At the end of the year, a car dealer advertises that the list prices on all of last year's models have been discounted by 15%. What was the original price of the car that now carries a discounted price of $6,849.30
Click here to see answer by josmiceli(19441)

Question 178704: Joe has received an 11% increase in salary. His new weekly earnings are $222. What was his previous weekly salary?
Click here to see answer by josmiceli(19441)

Question 178704: Joe has received an 11% increase in salary. His new weekly earnings are $222. What was his previous weekly salary?
Click here to see answer by jojo14344(1513)

Question 178724: what is the answer step by step to 25d^2-15d-5/-5
Click here to see answer by stanbon(75887)

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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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, 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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, 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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