3a-12=4a+6

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Solution for 3a-12=4a+6 equation: 



3a-12=4a+6

We move all terms to the left:

3a-12-(4a+6)=0

We get rid of parentheses

3a-4a-6-12=0

We add all the numbers together, and all the variables

-1a-18=0

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

-a=18

a=18/-1

a=-18

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