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-2+a/3=3
We move all terms to the left:
-2+a/3-(3)=0
We add all the numbers together, and all the variables
a/3-5=0
We multiply all the terms by the denominator
a-5*3=0
We add all the numbers together, and all the variables
a-15=0
We move all terms containing a to the left, all other terms to the right
a=15
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