-9u+20u=-11

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Solution for -9u+20u=-11 equation: 



-9u+20u=-11

We move all terms to the left:

-9u+20u-(-11)=0

We add all the numbers together, and all the variables

11u+11=0

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

11u=-11

u=-11/11

u=-1

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