a+7=3a+3

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Solution for a+7=3a+3 equation: 



a+7=3a+3

We move all terms to the left:

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

We get rid of parentheses

a-3a-3+7=0

We add all the numbers together, and all the variables

-2a+4=0

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

-2a=-4

a=-4/-2

a=+2

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