Question

Write down a pair of integers whose:

(a) sum is -7

(b) difference is -7

(c) sum is 0

Answer 1

(a) sum is -7

– 2 + -5 = -7
∴ The two integers be -2 and -5.

(b) difference is -7

-20 – (-10) = -10 (∵ -20 – (-10))
-20 + 10 = -10
∴ The two integers be – 20 and -10.

(c) sum is 0

Any two integers of same number but different sign. 

For eg : 10 + (-10) = 0.