Answer:
The answer
x=3
y=4
Step-by-step explanation:
You use substitution to solve it:
x+1=-2x+10
3x+1=10
3x=9
plug in the solution to the equation to verify your answer.
11 years
7200 - 80x = 5000 + 120x-5000 + 80x -5000 + 80x 2200 = 200x 11 = x