7a-3=2a+12a

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Solution for 7a-3=2a+12a equation: 



7a-3=2a+12a

We move all terms to the left:

7a-3-(2a+12a)=0

We add all the numbers together, and all the variables

7a-(+14a)-3=0

We get rid of parentheses

7a-14a-3=0

We add all the numbers together, and all the variables

-7a-3=0

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

-7a=3

a=3/-7

a=-3/7

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