-11u+7u=20

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Solution for -11u+7u=20 equation: 



-11u+7u=20

We move all terms to the left:

-11u+7u-(20)=0

We add all the numbers together, and all the variables

-4u-20=0

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

-4u=20

u=20/-4

u=-5

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