75=-5(-5n-4)+5(-7n+3)

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Solution for 75=-5(-5n-4)+5(-7n+3) equation: 



75=-5(-5n-4)+5(-7n+3)

We move all terms to the left:

75-(-5(-5n-4)+5(-7n+3))=0



We calculate terms in parentheses: -(-5(-5n-4)+5(-7n+3)), so:

-5(-5n-4)+5(-7n+3)

We multiply parentheses

25n-35n+20+15

We add all the numbers together, and all the variables

-10n+35

Back to the equation:

-(-10n+35)



We get rid of parentheses

10n-35+75=0

We add all the numbers together, and all the variables

10n+40=0

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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