-159=-3(7a-1)=6

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Solution for -159=-3(7a-1)=6 equation: 



-159=-3(7a-1)=6

We move all terms to the left:

-159-(-3(7a-1))=0



We calculate terms in parentheses: -(-3(7a-1)), so:

-3(7a-1)

We multiply parentheses

-21a+3

Back to the equation:

-(-21a+3)



We get rid of parentheses

21a-3-159=0

We add all the numbers together, and all the variables

21a-162=0

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

21a=162

a=162/21

a=7+5/7

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