Answer:
The older man is 75 years old and the younger man is 25 years old.
Step-by-step explanation:
x is the younger man
3x is the older man
3x-15=6*(x-15)
3x-15=6x-90
-3x -3x
-15=3x-90
+90 +90
75=3x
25=x
x=25
3x=75
The older man is 75 years old and the younger man is 25 years old.