Question

What should we get if we add -15 and get -8

Answer 1

We should add +7 to -15 to get -8.

-15 + 7= -8

Answer 2

Let x is to be added.

So, -15 + x = -8

=> x = -8 + 15

=> x = 7

Thus, 7 must be added to -15 to get -8.

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