Question

Select the choice below that could be the first step in solving the following system of equations using substitution:
3x + 8y = -12
9y − x + 10 = 0

Answer 1

i'm not sure what you are doing here......the first eq is closer (further) along toward to solving the system
all you'd have to do is get the 3x on the right side of the = and then divide by 8
that would give you an expression equivalent to y that you could substitute in the 2d eq

Answer 2

thanks