7a+12=4a+3

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



7a+12=4a+3

We move all terms to the left:

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

We get rid of parentheses

7a-4a-3+12=0

We add all the numbers together, and all the variables

3a+9=0

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

3a=-9

a=-9/3

a=-3

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