Bob is 2 years more than half the age of his uncle. If their ages total 65, how old are the two men?

B = 2 + U/2
B + U = 65 Substitute the first equation into the second.

2 + U/2 + U = 65 Multiply by 2.

4 + U + 2U = 130 Subtract 4.

3U = 126 Divide by 3.

U = 42 The uncle is 42. Substitute that into the first equation.

B = 2 + 21 = 23 Bob is 23.