Use substitution to solve the system of equations.

y + 1 = - 2x

4y + 8x = - 4

Infinitely many solutions

Explanation:

1) subtract "1" from both sides to get y by itself

Y=-2x-1

2) 4y+8x=-4 share a gcf of "4" so you can divide the whole equation by 4

y+2y=-1

Now substitute "-2x-1" as y

(-2x-1) + 2x=-1

-2x and 2x cancel each other and so does - 1 and - 1

Hence, this system has infinitely many solutions