30=-u+171

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Solution for 30=-u+171 equation: 



30=-u+171

We move all terms to the left:

30-(-u+171)=0

We add all the numbers together, and all the variables

-(-1u+171)+30=0

We get rid of parentheses

1u-171+30=0

We add all the numbers together, and all the variables

u-141=0

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

u=141

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