Answer:
The two numbers are 28 and 35.
Step-by-step explanation:
x + y = 63
x - y = 7
Get one equation with one variable. We can't solve for a variable if we had two variables in one equation.
Add the two equations together.
2x = 70
x = 35
You see, the y's canceled out and we can solve for x.
Now plug x back in to solve for y.
35 - y = 7
-y = -28
y = 28