12a-14=5a+21

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Solution for 12a-14=5a+21 equation: 



12a-14=5a+21

We move all terms to the left:

12a-14-(5a+21)=0

We get rid of parentheses

12a-5a-21-14=0

We add all the numbers together, and all the variables

7a-35=0

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

7a=35

a=35/7

a=5

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