-3(3a+4)=3(1+2a)

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Solution for -3(3a+4)=3(1+2a) equation: 



-3(3a+4)=3(1+2a)

We move all terms to the left:

-3(3a+4)-(3(1+2a))=0

We add all the numbers together, and all the variables

-3(3a+4)-(3(2a+1))=0

We multiply parentheses

-9a-(3(2a+1))-12=0



We calculate terms in parentheses: -(3(2a+1)), so:

3(2a+1)

We multiply parentheses

6a+3

Back to the equation:

-(6a+3)



We get rid of parentheses

-9a-6a-3-12=0

We add all the numbers together, and all the variables

-15a-15=0

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

-15a=15

a=15/-15

a=-1

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