131=-4n+7(5n-1)

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Solution for 131=-4n+7(5n-1) equation: 



131=-4n+7(5n-1)

We move all terms to the left:

131-(-4n+7(5n-1))=0



We calculate terms in parentheses: -(-4n+7(5n-1)), so:

-4n+7(5n-1)

We multiply parentheses

-4n+35n-7

We add all the numbers together, and all the variables

31n-7

Back to the equation:

-(31n-7)



We get rid of parentheses

-31n+7+131=0

We add all the numbers together, and all the variables

-31n+138=0

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

-31n=-138

n=-138/-31

n=4+14/31

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