-3a=2(2a+7)

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Solution for -3a=2(2a+7) equation: 



-3a=2(2a+7)

We move all terms to the left:

-3a-(2(2a+7))=0



We calculate terms in parentheses: -(2(2a+7)), so:

2(2a+7)

We multiply parentheses

4a+14

Back to the equation:

-(4a+14)



We get rid of parentheses

-3a-4a-14=0

We add all the numbers together, and all the variables

-7a-14=0

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

-7a=14

a=14/-7

a=-2

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