Question 460544
Joe's present age = X
Jim's present age = Y

X+Y=92 (1)

X+8 = 2*(Y+8) (2)
X+8 = 2Y+16   (2)
X = 2Y + 8 (2)

Substitute (2) into (1)

2Y+8+Y = 92
3Y+8 =92
3Y = 84
Y = 28
X =92-28
X = 64

Does this make any sense? Please get back to me.