3(13-2a)=-3+1a

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Solution for 3(13-2a)=-3+1a equation: 



3(13-2a)=-3+1a

We move all terms to the left:

3(13-2a)-(-3+1a)=0

We add all the numbers together, and all the variables

3(-2a+13)-(a-3)=0

We multiply parentheses

-6a-(a-3)+39=0

We get rid of parentheses

-6a-a+3+39=0

We add all the numbers together, and all the variables

-7a+42=0

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

-7a=-42

a=-42/-7

a=+6

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