28=8-2u

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Solution for 28=8-2u equation: 



28=8-2u

We move all terms to the left:

28-(8-2u)=0

We add all the numbers together, and all the variables

-(-2u+8)+28=0

We get rid of parentheses

2u-8+28=0

We add all the numbers together, and all the variables

2u+20=0

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

2u=-20

u=-20/2

u=-10

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