15a-54=8a+30

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Solution for 15a-54=8a+30 equation: 



15a-54=8a+30

We move all terms to the left:

15a-54-(8a+30)=0

We get rid of parentheses

15a-8a-30-54=0

We add all the numbers together, and all the variables

7a-84=0

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

7a=84

a=84/7

a=12

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