15a=(4a-12)

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Solution for 15a=(4a-12) equation: 



15a=(4a-12)

We move all terms to the left:

15a-((4a-12))=0



We calculate terms in parentheses: -((4a-12)), so:

(4a-12)

We get rid of parentheses

4a-12

Back to the equation:

-(4a-12)



We get rid of parentheses

15a-4a+12=0

We add all the numbers together, and all the variables

11a+12=0

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

11a=-12

a=-12/11

a=-1+1/11

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