Question

If 2y = x + 40 and 3x = y + 20, what is the
value of x+y?

Answer 1

Explanation:

2y=x+40

y=x/2+20

3x=(x/2+20)+20

3x=x/2+40

6x=x+80

5x=80

x=16

2y=16+40

2y=56

y=28

16+28=44