-2(1+a)=-(3a+3)-6

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Solution for -2(1+a)=-(3a+3)-6 equation: 



-2(1+a)=-(3a+3)-6

We move all terms to the left:

-2(1+a)-(-(3a+3)-6)=0

We add all the numbers together, and all the variables

-2(a+1)-(-(3a+3)-6)=0

We multiply parentheses

-2a-(-(3a+3)-6)-2=0



We calculate terms in parentheses: -(-(3a+3)-6), so:

-(3a+3)-6

We get rid of parentheses

-3a-3-6

We add all the numbers together, and all the variables

-3a-9

Back to the equation:

-(-3a-9)



We get rid of parentheses

-2a+3a+9-2=0

We add all the numbers together, and all the variables

a+7=0

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

a=-7

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