-18=-8+2u

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Solution for -18=-8+2u equation: 



-18=-8+2u

We move all terms to the left:

-18-(-8+2u)=0

We add all the numbers together, and all the variables

-(2u-8)-18=0

We get rid of parentheses

-2u+8-18=0

We add all the numbers together, and all the variables

-2u-10=0

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

-2u=10

u=10/-2

u=-5

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