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u/2-12=17
We move all terms to the left:
u/2-12-(17)=0
We add all the numbers together, and all the variables
u/2-29=0
We multiply all the terms by the denominator
u-29*2=0
We add all the numbers together, and all the variables
u-58=0
We move all terms containing u to the left, all other terms to the right
u=58
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