Helpme solve this please i am really stuck

x+3y=8
x=4-3y

4 answers

collect the like terms
You cannot do that on a system of equations like this
Try manipulating the equations so that all terms are on the left side. You may find that a solution does not exist.
x+3y=8

x=4-3y

By substitution, you get:

(4 - 3y) + 3y = 8

Since the y-terms cancel out, there is no solution.

I hope this helps a little more.