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u/7+30=35
We move all terms to the left:
u/7+30-(35)=0
We add all the numbers together, and all the variables
u/7-5=0
We multiply all the terms by the denominator
u-5*7=0
We add all the numbers together, and all the variables
u-35=0
We move all terms containing u to the left, all other terms to the right
u=35
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