3(a-3)=6a-(3a-a)

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Solution for 3(a-3)=6a-(3a-a) equation: 



3(a-3)=6a-(3a-a)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

3a-(6a-(+2a))-9=0



We calculate terms in parentheses: -(6a-(+2a)), so:

6a-(+2a)

We get rid of parentheses

6a-2a

We add all the numbers together, and all the variables

4a

Back to the equation:

-(4a)



We add all the numbers together, and all the variables

-1a-9=0

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

-a=9

a=9/-1

a=-9

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