12+3a=(a-2)

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Solution for 12+3a=(a-2) equation: 



12+3a=(a-2)

We move all terms to the left:

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



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

(a-2)

We get rid of parentheses

a-2

Back to the equation:

-(a-2)



We get rid of parentheses

3a-a+2+12=0

We add all the numbers together, and all the variables

2a+14=0

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

2a=-14

a=-14/2

a=-7

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