23+18u=-21

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Solution for 23+18u=-21 equation: 



23+18u=-21

We move all terms to the left:

23+18u-(-21)=0

We add all the numbers together, and all the variables

18u+44=0

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

18u=-44

u=-44/18

u=-2+4/9

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