3-90u=30

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Solution for 3-90u=30 equation: 



3-90u=30

We move all terms to the left:

3-90u-(30)=0

We add all the numbers together, and all the variables

-90u-27=0

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

-90u=27

u=27/-90

u=-3/10

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