Homework Help: 7th grade-math

Posted by Elissa on Tuesday, May 26, 2009 at 9:57pm.

I need to find the linear system for the equations 4x+3=y and x=y-2
Any help at all would be great!
And please show me how you did it if possible, thanks!

7th grade-math - Damon, Wednesday, May 27, 2009 at 6:27am
4 x - 1 y = -3
1 x - 1 y = -2
-------------- subtract
3 x - 0 y = -1
x = -1/3
then y = 4 (-1/3) + 3
y = -4/3 + 9/3
y = 5/3
so (-1/3 , 5/3)

check
4(-1/3) + 3 = -4/3+9/3 = 5/3 right
-1/3 = 5/3 - 2
-1/3 = 5/3 -6/3 right

Answer this Question

Related Questions

math 20 system of equations - I have been solving system of equations ...
9th grade math (algebra 1) - Fine the solution set of each system of linear ...
math - PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *...
math - PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *...
math - i only need help on these two: *2/3y=10+4x 5x=1/3y-8 *5x=4y-30 2x+3y=-12 ...
Math Help PLEASE - Solve the system of equations by graphing then classify the ...
Algebra HELP - USE LINEAR COMBINATIONS TO SOLVE THE SYSTEM OF LINEAR EQUATIONS (...
algebra - I need help, i have to solve the linear solution using substitution, ...
MATH - system of linear equation The sum of 3 numbers is 14 the largest is 4 ...
Discrete Math - I am really stuck on these problems. I've worked a lot of ...

For Further Reading

First Name:
School Subject:
Answer: