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8(a+3)=47
We move all terms to the left:
8(a+3)-(47)=0
We multiply parentheses
8a+24-47=0
We add all the numbers together, and all the variables
8a-23=0
We move all terms containing a to the left, all other terms to the right
8a=23
a=23/8
a=2+7/8
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