u/18=21

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Solution for u/18=21 equation: 



u/18=21

We move all terms to the left:

u/18-(21)=0

We multiply all the terms by the denominator


u-21*18=0

We add all the numbers together, and all the variables

u-378=0

We move all terms containing u to the left, all other terms to the right

u=378

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