Question

The sum of two numbers is 83. The difference of the two numbers is 24. Find the two numbers.

Answer 1

1) a + b = 83

2) a - b = 24

Now use substitution - for example:

from 2) above: a = b + 24

then from 1) above: (b + 24) + b = 83

now solve for b then for a . . .