If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation.

8x - y = -9
4x - 3y = -22

Question

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation. 

8x - y = -9 
4x - 3y = -22

jim_thompson5910 · Answer

what do you get when you solve  8x - y = -9   for y?

anonymous · Answer

idk..

anonymous · Answer

Isolate y onto one side of the equation.

So to do that you'd add y to the left and the right side. The left side cancels so you're left with y on the right side.

Since we want to isolate y we add 9 to both sides and 9 cancels on the right so we're left with +9 on the left.

You just solved for y.

anonymous · Answer

Now plug that y value that you just solved for into the second equation given and you should be able to solve for x.