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02-10-2019
Mathematics

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Simplify the following expression:

- (- 8m - 4n + 7)

A. 8m + 4n - 7

B. 8m + 4n + 7

C. 8m - 4n - 7

D. -8m - 4n - 7

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03-10-2019

Answer:

-7 + 8 m + 4 n thus A. is your Answer

Step-by-step explanation:

Expand the following:

-(-8 m - 4 n + 7)

-(7 - 8 m - 4 n) = -7 - -8 m - -4 n:

-7 - -8 m - -4 n

-(-8) = 8:

-7 + 8 m - -4 n

-(-4) = 4:

Answer: -7 + 8 m + 4 n

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