3=a-2

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Solution for 3=a-2 equation: 



3=a-2

We move all terms to the left:

3-(a-2)=0

We get rid of parentheses

-a+2+3=0

We add all the numbers together, and all the variables

-1a+5=0

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

-a=-5

a=-5/-1

a=+5

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