-23=7(u-2)+2u

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Solution for -23=7(u-2)+2u equation: 



-23=7(u-2)+2u

We move all terms to the left:

-23-(7(u-2)+2u)=0



We calculate terms in parentheses: -(7(u-2)+2u), so:

7(u-2)+2u

We add all the numbers together, and all the variables

2u+7(u-2)

We multiply parentheses

2u+7u-14

We add all the numbers together, and all the variables

9u-14

Back to the equation:

-(9u-14)



We get rid of parentheses

-9u+14-23=0

We add all the numbers together, and all the variables

-9u-9=0

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

-9u=9

u=9/-9

u=-1

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