4a+12=a+15

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Solution for 4a+12=a+15 equation: 



4a+12=a+15

We move all terms to the left:

4a+12-(a+15)=0

We get rid of parentheses

4a-a-15+12=0

We add all the numbers together, and all the variables

3a-3=0

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

3a=3

a=3/3

a=1

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