-4n-40=-4(7n-8)

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Solution for -4n-40=-4(7n-8) equation: 



-4n-40=-4(7n-8)

We move all terms to the left:

-4n-40-(-4(7n-8))=0



We calculate terms in parentheses: -(-4(7n-8)), so:

-4(7n-8)

We multiply parentheses

-28n+32

Back to the equation:

-(-28n+32)



We get rid of parentheses

-4n+28n-32-40=0

We add all the numbers together, and all the variables

24n-72=0

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

24n=72

n=72/24

n=3

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