Question

Solve the system of equations.
-9y+4x-20=0
-7y=16x-80=0

Answer 1

x = 5, y = 0

Explanation:

-9y+4x-20 = 0

-7y+16x-80 = 0

we substitute for x, x = (20+9y)/4 whichw we get

-7y+ 4(20+9y) - 80 = 0

-7y+80+36y-80 = 0, y =0 results x = 5