Question

Solve the system of equations X-Y = -12 and -8x-4y=-12 by combining the equations

Answer 1

x = -3

y = 9

Explanation:

you can add the equations after multiplying the first one by 8

8x - 8y = -96 added to -8x - 4y = -96

'x' eliminated; -12y = -108; y = 9

Solve for 'x':

x - 9 = -12

x = -12 + 9

x = -3