Question

What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

-7

7

9

-9

Answer 1

Do you prefer using the substitution method or elimination method?

Answer 2

If I were you, I would do the following

solve for x in the first equation.

x = -4/5y +1/5

now plug that in for x in the second equation

you should get

4(-4/5y +1/5) + 3y = -1

now solve for y

Answer 3

9

Answer 4

@tanner23456

Answer 5

Yes, that's right.