12a-3=7a+12

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



12a-3=7a+12

We move all terms to the left:

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

We get rid of parentheses

12a-7a-12-3=0

We add all the numbers together, and all the variables

5a-15=0

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

5a=15

a=15/5

a=3

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