23=7(u+3)-5u

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Solution for 23=7(u+3)-5u equation: 



23=7(u+3)-5u

We move all terms to the left:

23-(7(u+3)-5u)=0



We calculate terms in parentheses: -(7(u+3)-5u), so:

7(u+3)-5u

We add all the numbers together, and all the variables

-5u+7(u+3)

We multiply parentheses

-5u+7u+21

We add all the numbers together, and all the variables

2u+21

Back to the equation:

-(2u+21)



We get rid of parentheses

-2u-21+23=0

We add all the numbers together, and all the variables

-2u+2=0

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

-2u=-2

u=-2/-2

u=1

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