Here's a clue:
74/2 = 37
The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
2 answers
x+y=74
x-y=2 (the y's cancel so...)
2x=76
x= 38
the older friend is 38, the other one is 36
x-y=2 (the y's cancel so...)
2x=76
x= 38
the older friend is 38, the other one is 36
1 answer