Respuesta :

Double the first equation to get
-16x+12y=4

Add that to the second equation and get
9y=-9
y=-1

Then we solve for x. Let's plug y into the first equation.
-8x+6y=2
-8x-6=2
-8x=8
x=-1

y=-1
x=-1
mumsy
I will attach the picture
first step is to multiply the first equation by 2
Ver imagen mumsy