-28=2(u-7)-4u

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Solution for -28=2(u-7)-4u equation: 



-28=2(u-7)-4u

We move all terms to the left:

-28-(2(u-7)-4u)=0



We calculate terms in parentheses: -(2(u-7)-4u), so:

2(u-7)-4u

We add all the numbers together, and all the variables

-4u+2(u-7)

We multiply parentheses

-4u+2u-14

We add all the numbers together, and all the variables

-2u-14

Back to the equation:

-(-2u-14)



We get rid of parentheses

2u+14-28=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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