138=-6(2-5n)

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



138=-6(2-5n)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

-6(-5n+2)

We multiply parentheses

30n-12

Back to the equation:

-(30n-12)



We get rid of parentheses

-30n+12+138=0

We add all the numbers together, and all the variables

-30n+150=0

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

-30n=-150

n=-150/-30

n=+5

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