6a-12=a+3

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



6a-12=a+3

We move all terms to the left:

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

We get rid of parentheses

6a-a-3-12=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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