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a/5+2=13
We move all terms to the left:
a/5+2-(13)=0
We add all the numbers together, and all the variables
a/5-11=0
We multiply all the terms by the denominator
a-11*5=0
We add all the numbers together, and all the variables
a-55=0
We move all terms containing a to the left, all other terms to the right
a=55
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