-u-30=7u

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Solution for -u-30=7u equation: 



-u-30=7u

We move all terms to the left:

-u-30-(7u)=0

We add all the numbers together, and all the variables

-8u-30=0

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

-8u=30

u=30/-8

u=-3+3/4

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