138=2n+5(-4n+6)

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Solution for 138=2n+5(-4n+6) equation: 



138=2n+5(-4n+6)

We move all terms to the left:

138-(2n+5(-4n+6))=0



We calculate terms in parentheses: -(2n+5(-4n+6)), so:

2n+5(-4n+6)

We multiply parentheses

2n-20n+30

We add all the numbers together, and all the variables

-18n+30

Back to the equation:

-(-18n+30)



We get rid of parentheses

18n-30+138=0

We add all the numbers together, and all the variables

18n+108=0

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

18n=-108

n=-108/18

n=-6

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