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3 years ago

The sum of a number,n,and 8 is multiplied by -4 ,and the result is -12 .what is the number?

Mathematics

2 answers:

GREYUIT [131]3 years ago

8 0

(8+n)*-4=-12
-32-4n=-12
-4n=20
n=-5

Anastasy [175]3 years ago

4 0

Sum of n and 8 = (n + 8)

Multiplied by -4 = -4*(n + 8)

Result = -12

-4*(n + 8) = -12 Divide both sides by -4

(n + 8) = -12/-4

n + 8 = 3

n = 3 - 8

n = -5.

The number is -5.

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