Answer:
Explanation:
You are going to want to use the substitution method to solve. Substitute the given value of x (which is x=-3+y) into the equation x+y=3. Now solve the equation for y.You get y = 3. Plug in 3 for x in the other equation. You get x-3=-3 ---> x = 0.
So x = 0, y = 3