Question

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

Answer 1

-7

7

9

-9

Answer 2

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

1-5x = -1-4x
2=x

5(2) + 4y = 1, 4y=-9, y=-9/4
4(2) + 3y = -1 3y=-9, y=-3

The two equations don't seem to have one solution...

Answer 3

thats what im trying to figure out..