Gene G. answered 02/14/17
Tutor
5.0
(257)
Retired Electrical Engineer Helping People Understand Algebra
x = John
y = Jose
You found one of the two equations.
x + y = 25.
The first sentence has the other one.
x = y+3
Substitute (y+3) for x in the first equation and solve for y:
(y+3) + y = 25
2y+3 = 25
2y = 22
y = 11.
John had three more than that:
x = y+3
x = 11+3
x=14
Check:
x+y = 11+14 = 25