3+a=1+2a

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Solution for 3+a=1+2a equation: 



3+a=1+2a

We move all terms to the left:

3+a-(1+2a)=0

We add all the numbers together, and all the variables

a-(2a+1)+3=0

We get rid of parentheses

a-2a-1+3=0

We add all the numbers together, and all the variables

-1a+2=0

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

-a=-2

a=-2/-1

a=+2

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