30=4a-7

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Solution for 30=4a-7 equation: 



30=4a-7

We move all terms to the left:

30-(4a-7)=0

We get rid of parentheses

-4a+7+30=0

We add all the numbers together, and all the variables

-4a+37=0

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

-4a=-37

a=-37/-4

a=9+1/4

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