3 years ago

108=-12 - 4 (-5n+7)I need help

Mathematics

1 answer:

Andrei [34K]3 years ago

6 0

108 = -12 + -4(-5n + 7)

108 = -12 + (7 * -4 + -5n * -4)

108 = -12 + (-28 + 20n)

108 = -40 + 20n

-20n = -40 + -108

-20n = -148

n = 7.4

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