Question

Find the two numbers whose sum is 67 and whose difference is 3.

Answer 1

32;35

Explanation:

a+b=67

a-b=3 => a=3+b

=>instead of a we write 3+b =>

a+b=67 => 3+b+b=67 => 2b=64 => b=32

=> a = 3+b=> a=32+3=35