3=2a+a

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Solution for 3=2a+a equation: 



3=2a+a

We move all terms to the left:

3-(2a+a)=0

We add all the numbers together, and all the variables

-(+3a)+3=0

We get rid of parentheses

-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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