30=4a+2

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Solution for 30=4a+2 equation: 



30=4a+2

We move all terms to the left:

30-(4a+2)=0

We get rid of parentheses

-4a-2+30=0

We add all the numbers together, and all the variables

-4a+28=0

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

-4a=-28

a=-28/-4

a=+7

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