4=(2u+1)-8

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Solution for 4=(2u+1)-8 equation: 



4=(2u+1)-8

We move all terms to the left:

4-((2u+1)-8)=0



We calculate terms in parentheses: -((2u+1)-8), so:

(2u+1)-8

We get rid of parentheses

2u+1-8

We add all the numbers together, and all the variables

2u-7

Back to the equation:

-(2u-7)



We get rid of parentheses

-2u+7+4=0

We add all the numbers together, and all the variables

-2u+11=0

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

-2u=-11

u=-11/-2

u=5+1/2

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