-240=-8(7n-5)

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Solution for -240=-8(7n-5) equation: 



-240=-8(7n-5)

We move all terms to the left:

-240-(-8(7n-5))=0



We calculate terms in parentheses: -(-8(7n-5)), so:

-8(7n-5)

We multiply parentheses

-56n+40

Back to the equation:

-(-56n+40)



We get rid of parentheses

56n-40-240=0

We add all the numbers together, and all the variables

56n-280=0

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

56n=280

n=280/56

n=5

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