u=2(2u+1)-4

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



u=2(2u+1)-4

We move all terms to the left:

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



We calculate terms in parentheses: -(2(2u+1)-4), so:

2(2u+1)-4

We multiply parentheses

4u+2-4

We add all the numbers together, and all the variables

4u-2

Back to the equation:

-(4u-2)



We get rid of parentheses

u-4u+2=0

We add all the numbers together, and all the variables

-3u+2=0

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

-3u=-2

u=-2/-3

u=2/3

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