9-2u=23

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Solution for 9-2u=23 equation: 



9-2u=23

We move all terms to the left:

9-2u-(23)=0

We add all the numbers together, and all the variables

-2u-14=0

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

-2u=14

u=14/-2

u=-7

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