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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(2(3a+3)), so:

2(3a+3)

We multiply parentheses

6a+6

Back to the equation:

-(6a+6)



We get rid of parentheses

2a-6a-6-2=0

We add all the numbers together, and all the variables

-4a-8=0

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

-4a=8

a=8/-4

a=-2

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