130=10(-7+n)

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Solution for 130=10(-7+n) equation: 



130=10(-7+n)

We move all terms to the left:

130-(10(-7+n))=0

We add all the numbers together, and all the variables

-(10(n-7))+130=0



We calculate terms in parentheses: -(10(n-7)), so:

10(n-7)

We multiply parentheses

10n-70

Back to the equation:

-(10n-70)



We get rid of parentheses

-10n+70+130=0

We add all the numbers together, and all the variables

-10n+200=0

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

-10n=-200

n=-200/-10

n=+20

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