Question

11. The sum of two numbers

is 29 and the difference of the
same two numbers is 15.
What are the two numbers?

Answer 1

(22, 7)

Explanation:

Let x and y be the unknown two numbers.

x+y=29

x-y=15

----------

2x=44

x=44/2

x=22

----------

22+y=29

y=29-22=7

x=22, y=7.