Answer:
He could use y+3x=-4
Step-by-step explanation:
When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21
-2 = 39x ? Are you sure this is right? I'm willing to help!
196 people want lower prices
I think it's D) 3
hope I helped
um
ok?
