7a+12=6a+9

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Solution for 7a+12=6a+9 equation: 



7a+12=6a+9

We move all terms to the left:

7a+12-(6a+9)=0

We get rid of parentheses

7a-6a-9+12=0

We add all the numbers together, and all the variables

a+3=0

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

a=-3

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