-28=-8+5u

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Solution for -28=-8+5u equation: 



-28=-8+5u

We move all terms to the left:

-28-(-8+5u)=0

We add all the numbers together, and all the variables

-(5u-8)-28=0

We get rid of parentheses

-5u+8-28=0

We add all the numbers together, and all the variables

-5u-20=0

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

-5u=20

u=20/-5

u=-4

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