#### Answer

{(-1,-$\frac{1}{2}$)}

#### Work Step by Step

8y=4x
4x=8y
$\frac{4}{4}$x=$\frac{8}{4}$y
x=2y
Plug this value for x into the other equation
7x+2y=-8
7(2y)+2y=-8
14y+2y=-8
16y=-8
y=-$\frac{8}{16}$
y=-$\frac{1}{2}$
Therefore the solution is {(-1,-$\frac{1}{2}$)}