-16u+81=9

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Solution for -16u+81=9 equation: 



-16u+81=9

We move all terms to the left:

-16u+81-(9)=0

We add all the numbers together, and all the variables

-16u+72=0

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

-16u=-72

u=-72/-16

u=4+1/2

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