-a+3=2-6a+7a+15

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Solution for -a+3=2-6a+7a+15 equation: 



-a+3=2-6a+7a+15

We move all terms to the left:

-a+3-(2-6a+7a+15)=0

We add all the numbers together, and all the variables

-a-(a+17)+3=0

We add all the numbers together, and all the variables

-1a-(a+17)+3=0

We get rid of parentheses

-1a-a-17+3=0

We add all the numbers together, and all the variables

-2a-14=0

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

-2a=14

a=14/-2

a=-7

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