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Find the sum: (a) (–7) + (–9) + 4 + 16 rbjm jrmheijt netjmn ij tejmkdfnjgdmn jt

Find the sum: (a) (–7) + (–9) + 4 + 16  
 
rbjm jrmheijt netjmn ij tejmkdfnjgdmn jt

Grade:12th pass

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
2 years ago
Dear student

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



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