Question

ok solve using
7x+4y=-13
-9x+y =29

Answer 1

x = 3, y = -8.5

Answer 2

wrong y

Answer 3

Here is one way of solving it:

Multiply the second equation by -4 to eliminate y and then you get:

7x+4y=-13
36x-4y=-116

Add the two above equations and you get:

43x=-129
x=-3

Substitute x=-3 into one of the equations to solve for y:

7x+4y=-13
7(-3)+4y=-13
-21+4y=-13
4y=8
y=2

Therefore, x=-3 and y=2

Answer 4

ty solved