-40=-5(-2n)

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Solution for -40=-5(-2n) equation: 



-40=-5(-2n)

We move all terms to the left:

-40-(-5(-2n))=0



We calculate terms in parentheses: -(-5(-2n)), so:

-5(-2n)

We multiply parentheses

10n

Back to the equation:

-(10n)



We move all terms containing n to the left, all other terms to the right

-10n=40

n=40/-10

n=-4

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