Advertisements
Advertisements
Question
Find the sum:
(–7) + (–9) + 4 + 16
Sum
Advertisements
Solution
(–7) + (–9) + 4 + 16
= (–7) + (–9) + 4 + (+7) + (+9)
= (–7) + (+7) + (–9) + (+9) + 4
= 0 + 0 + 4 ...[∵ (–a) + (+a) = 0]
= 4
shaalaa.com
Is there an error in this question or solution?
