Let's do another one where we get a bit of a head start:
Notice that one equation is solved for x...
Let's stick that x blob into the other equation in place of x:
This gives us
OK, we've got y... Now, we need x... See the circled blob above?
Stick it in there! ( That's why I circled it! )
Is our answer
(7, 5) ?
and you have to check it in BOTH equations!
So, the answer is (7, 5).
Solve by substitution: