129=3(-5+6n)

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Solution for 129=3(-5+6n) equation: 



129=3(-5+6n)

We move all terms to the left:

129-(3(-5+6n))=0

We add all the numbers together, and all the variables

-(3(6n-5))+129=0



We calculate terms in parentheses: -(3(6n-5)), so:

3(6n-5)

We multiply parentheses

18n-15

Back to the equation:

-(18n-15)



We get rid of parentheses

-18n+15+129=0

We add all the numbers together, and all the variables

-18n+144=0

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

-18n=-144

n=-144/-18

n=+8

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