3-4a=5a+12

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Solution for 3-4a=5a+12 equation: 



3-4a=5a+12

We move all terms to the left:

3-4a-(5a+12)=0

We get rid of parentheses

-4a-5a-12+3=0

We add all the numbers together, and all the variables

-9a-9=0

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

-9a=9

a=9/-9

a=-1

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