Question

8x-2y=4 and x+4y=-12

Answer 1

x=-4/17, y=-50/17. (-4/17, -50/17).

Explanation:

8x-2y=4

x+4y=-12

--------------

simplify 8x-2y=4 into 4x-y=2

--------------

y=4x-2

x+4(4x-2)=-12

x+16x-8=-12

17x=-12+8

17x=-4

x=-4/17

y=4(-4/17)-2=-16/17-2=-16/17-34/17=-50/17