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8a+2=3a+30
We move all terms to the left:
8a+2-(3a+30)=0
We get rid of parentheses
8a-3a-30+2=0
We add all the numbers together, and all the variables
5a-28=0
We move all terms containing a to the left, all other terms to the right
5a=28
a=28/5
a=5+3/5
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