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29-01-2016
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Seven times the input minus five is equal to the output. If the input is -2, what is the output? A. -19 B. -9 C. 35 D. -70

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29-01-2016

Given:
7i - 5 = o
i = -2

7(-2) - 5 = -14 - 5 = -19 Choice A.

Both numbers are in negative form, addition must be performed and the negative sign must be carried over to the sum.

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