9 and 6
15 + 1 = 16 sum 15 - 1 = 14 difference
10
2 Numbers are a and b. We have( a>b) a+b=40(1) and a-b=10(2) a=10+b( from 2. Subtracts both side by b) => 10+b+b=40 (from 1. Substitute a with 10+b) => 10+2b =40 => 2b =30 => b =15 =>a=10+15=25 => a=25 b=15.
The two numbers are 10 and 2
9 13
15 + 1 = 16 sum 15 - 1 = 14 difference
10
12 and 15
25 and 15
The numbers are 9 and -6 because 9-(-6) = 15 and 9+(-6) = 3
19 and 34
A). 11b). 15
8 and 6 have a difference of 2 and a sum of 14.
2 Numbers are a and b. We have( a>b) a+b=40(1) and a-b=10(2) a=10+b( from 2. Subtracts both side by b) => 10+b+b=40 (from 1. Substitute a with 10+b) => 10+2b =40 => 2b =30 => b =15 =>a=10+15=25 => a=25 b=15.
The two numbers are 10 and 2
Three
The numbers are 11 and 10