4a-12-7a=3a-12

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Solution for 4a-12-7a=3a-12 equation: 



4a-12-7a=3a-12

We move all terms to the left:

4a-12-7a-(3a-12)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3a-3a+12-12=0

We add all the numbers together, and all the variables

-6a=0

a=0/-6

a=0

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