7+2a=3a+1

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Solution for 7+2a=3a+1 equation: 



7+2a=3a+1

We move all terms to the left:

7+2a-(3a+1)=0

We get rid of parentheses

2a-3a-1+7=0

We add all the numbers together, and all the variables

-1a+6=0

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

-a=-6

a=-6/-1

a=+6

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