-2u+42=21u-8

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Solution for -2u+42=21u-8 equation: 



-2u+42=21u-8

We move all terms to the left:

-2u+42-(21u-8)=0

We get rid of parentheses

-2u-21u+8+42=0

We add all the numbers together, and all the variables

-23u+50=0

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

-23u=-50

u=-50/-23

u=2+4/23

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