u/9+71=81

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Solution for u/9+71=81 equation: 



u/9+71=81

We move all terms to the left:

u/9+71-(81)=0

We add all the numbers together, and all the variables

u/9-10=0

We multiply all the terms by the denominator


u-10*9=0

We add all the numbers together, and all the variables

u-90=0

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

u=90

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