-159=-7(1+3n)-5

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Solution for -159=-7(1+3n)-5 equation: 



-159=-7(1+3n)-5

We move all terms to the left:

-159-(-7(1+3n)-5)=0

We add all the numbers together, and all the variables

-(-7(3n+1)-5)-159=0



We calculate terms in parentheses: -(-7(3n+1)-5), so:

-7(3n+1)-5

We multiply parentheses

-21n-7-5

We add all the numbers together, and all the variables

-21n-12

Back to the equation:

-(-21n-12)



We get rid of parentheses

21n+12-159=0

We add all the numbers together, and all the variables

21n-147=0

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

21n=147

n=147/21

n=7

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