-7(-1+3a)=5(3-3a)

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



-7(-1+3a)=5(3-3a)

We move all terms to the left:

-7(-1+3a)-(5(3-3a))=0

We add all the numbers together, and all the variables

-7(3a-1)-(5(-3a+3))=0

We multiply parentheses

-21a-(5(-3a+3))+7=0



We calculate terms in parentheses: -(5(-3a+3)), so:

5(-3a+3)

We multiply parentheses

-15a+15

Back to the equation:

-(-15a+15)



We get rid of parentheses

-21a+15a-15+7=0

We add all the numbers together, and all the variables

-6a-8=0

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

-6a=8

a=8/-6

a=-1+1/3

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