the sum of to kim and tony's ages is 42, the difference in their ages is 4 years. what are the ages of kim and tony?

Answer 1

19 and 23

My unconventional method was to divide 42 by 2 to get 21. I went from there.

Answer 2

You could also solve these equations.

x + y = 42
x - y = 4

Answer 3

It’s really hard