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

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



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

We move all terms to the left:

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



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

a+3(a-1)

We multiply parentheses

a+3a-3

We add all the numbers together, and all the variables

4a-3

Back to the equation:

-(4a-3)



We get rid of parentheses

a-4a+3-2=0

We add all the numbers together, and all the variables

-3a+1=0

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

-3a=-1

a=-1/-3

a=1/3

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