Questions on Algebra: Systems of equations that are not linear answered by real tutors!

Tutors Answer Your Questions about Systems-of-equations (FREE)

Question 24316: 9x+6y=14
3x+2y=11
Solve for x and y
I know that you have to use substitution but i keep getting answers like,
9x+66-9x=14 so it is going to turn out with your x's turning into a zero and you come out with 0=52 and that is obviousley not true...PLEASE HELP ASAP I have been working on this for at least an hour
i looked for examples similiar to this problem but i could'nt find any

Click here to see answer by venugopalramana(3286)

Question 24984: 2PV+36Dv-2h=3 my teacher said that this is linear but my algebra class thinks its not because it has more than 3 variables . is it a linear equation?
Click here to see answer by Earlsdon(6294)

Question 25332: 10x-6+3x+5+3x+5=180

Click here to see answer by Alwayscheerful(414)

Question 25332: 10x-6+3x+5+3x+5=180

Click here to see answer by stanbon(75887)

Question 24840: Sunshine truck rentals rents a truck at a daily rate of $57.99 plus $.48 per mile. City Rentals rents the same size truck at $58.95 plus $.46 per mile. For at what mileage is the cost the same?
Click here to see answer by stanbon(75887)

Question 25689: x-8=9
Click here to see answer by queenofit(120)

Question 25902: x^4 - 10x^2 + 9 / x^3 + 4x^2 + 3x
Click here to see answer by Linz(9)

Question 26078: 4f-5=7h+fg - solve for f
Click here to see answer by stanbon(75887)

Question 26318: You live in Pennsylvania and your grandparents live in Ohio. When you are in Pennsylvania, you drive at an average rate of 55 mph. When you are in Ohio, you drive at a rate of 65 mph. The entire trip of 295 miles takes 5 hours. How long does it take to reach the Pennsylvania-Ohio boarder? How long does it take it to get from the boarder to ypur grandparents' house?
Click here to see answer by Paul(988)

Question 26316: The perimeter of a rectangle is 20 inches. The perimeter of the inscribed triangle is 20 inches. Find the dimensions of the rectangle.
Click here to see answer by venugopalramana(3286)

Question 26405: Please Help me.
Rewrite the equation -x-10y=50 as a function of x.
Thank you so much.
Click here to see answer by stanbon(75887)

Question 25898: Solve v = ay/n^2 for y
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Question 27243: my math teacher is literally horrible at teaching and every year 75% of his class fails and i am in that position as of now. i have never been good at math but i catch on if explained clearly but he does not take the time to do that so i am stuck. please help me figure this out!
Solve the system of equations:
y=3x
2x+y=5
i have asked my family but they really have no idea how to do it either. i have tried to figure it out but i keep getting the same wrong answer.
my steps:
y=3x
2x+y=5
3x+2x= 5x
5x/5= 1
3x(1)= 3
x=3
y=3x=3 x 3= 9
y=9
but that answer is incorrect :( so if you could please help me to figure out what im doing wrong and explain to me the steps it would be greatly appreciated! thank you
failing algebra,
whitney

Click here to see answer by rodriguezh2(15)

Question 27241: A rectangular garden is three times as long as its wide. If the length is decreased by 8ft and the width is increased by 5ft, the perimeter will be 66ft. Find the deminsons of the orginal garden?
Click here to see answer by Paul(988)

Question 27272: Determine whether the given ordered pair is a solution of the system of equations.
1.(3,2);2x+3y=12
x-4y= -5
2.(1,5);5x-2y=-5
3x-7y=-32
3.(3,2);3t-2s=0
t+2s=15

Click here to see answer by sdmmadam@yahoo.com(530)

Question 27355: -3(x+5)=3(x-1)
Click here to see answer by rodriguezh2(15)

Question 27359: -3(x+5)=3(x-1)
6-b=5b+30
5y-2y=3y+2
2(7+3t)=-t
3(a+1)-5=3a-2
Click here to see answer by Alwayscheerful(414)

Question 27366: how do you figure this problem out m^2+3m+2=0
Click here to see answer by Alwayscheerful(414)

Question 27571: How do i solve:-4x-y=-6
4x+3y=18
Click here to see answer by sdmmadam@yahoo.com(530)

Question 27858: 4x+2y=14
7x-3y=-8
Click here to see answer by Sridi(6)

Question 27884: what is the solution to this multiply expression: (2x+5)√2 ...please explain solution....

Click here to see answer by AnlytcPhil(1806)

Question 28179: 8b-4(b-2)=24
what is the value of b?
Click here to see answer by atif.muhammad(135)

Question 28392: -3/2=x+1/2

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Question 29129: solving by elimination
8x-3y=16,
8x+3y=-8
Click here to see answer by longjonsilver(2297)

Question 28878: x-5y=10
-5=-x+6
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29335: x=4y
y=3x+1
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Question 29335: x=4y
y=3x+1
Click here to see answer by ikdeep(226)

Question 29313: 22=6(2x-3)-3(5x-8)
how do I find what x is?
Click here to see answer by ikdeep(226)

Question 29310: 22=6(2x-3)-3(5x-8)
how do I find what x is?
Click here to see answer by longjonsilver(2297)

Question 29518: I need your help with solving equations as relations. The problem is as follows:
3x=2y - 1 a. (1,2) b.(-1,-1) c.(-2,-5/2) d.(0,-1/2)
I tried and this is what i got:
3x=2y - 1 Add one to the 3x
3x + 1=2y You get 4x = 2y
4x = 2y Divide 4x by 2y and you get 2xy.
I dont think I did that right and thats not one of my multiple choice answers. Thanks,
Addy

Click here to see answer by stanbon(75887)

Question 29641: A cd costs 6 dollars more than an MP3 file. john bought two cd's and three MP3 files for 59.50 dollars. write a system of equations to represent the situation. how much did each CD cost?
Click here to see answer by ikdeep(226)

Question 29715: 15x+11y=132, 2x+3y=59
Click here to see answer by Cintchr(481)

Question 29898: r/gy=x Solve for y
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Question 29898: r/gy=x Solve for y
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30015: I am trying to solve this equation:
P = 2LW+4LH solving for L
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30272: molly is 4 years younger than heidi. in 3 years, heidi will be twice as old as molly. how old are they now?
Click here to see answer by Paul(988)

Question 30288: An airplane flew for 4 hours against a head wind of 40 km/h. On the return flight the same wind was now a tail wind, and the flight took 4 hours. find the speed of the airplane in still air.
Click here to see answer by Paul(988)

Question 30291: The sum of the digits of a two-digit number is 15. If the digits are reversed, the new number is 27 less than the original number. Find the original number.
Click here to see answer by Paul(988)

Question 30290: A cyclist rode 3 hours with a tail wind of 6 km/h. The return trip againt the head wind took 5 hours. Find the cyclist's speed in still air.
Click here to see answer by Paul(988)

Question 30287: A jar of nickels and dimes contains $3.30. There are 27 more nickels than dimes. How many of each are there?
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Question 30287: A jar of nickels and dimes contains $3.30. There are 27 more nickels than dimes. How many of each are there?
Click here to see answer by smoothflyin(6)

Question 30389: Hello. Ok the problem that I am having with my homework is this. The question says to solve each system of equations by using the substitution method. I am already aware that the problem here will have two answers so here it is
y=2x
x+y=12
I have tried to subtract the y value from the x+y=12, but I am not sure what I am doing!
Click here to see answer by checkley71(8403)

Question 30516: 7r=98

Click here to see answer by checkley71(8403)

Question 30516: 7r=98

Click here to see answer by sdmmadam@yahoo.com(530)

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