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5. Find the sum: (a) (–7) + (–9) + 4 + 16 dfhjndjmtgfjkfszedh b jm

5. Find the sum: (a) (–7) + (–9) + 4 + 16 
dfhjndjmtgfjkfszedh b jm

Grade:12

1 Answers

Anand Kumar Pandey
askIITians Faculty 5859 Points
one month ago
Dear Student

(-7) + (-9) + 4 + 16
= (-7) + (-9) + 4 + (+7) + (+9)
= (-7) + (+7) + (-9) + (+9) + 4
= 0 + 0 + 4 [(-a) + (+a) = 0] =4


Thanks

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