-10-10-u=10+2u

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Solution for -10-10-u=10+2u equation: 



-10-10-u=10+2u

We move all terms to the left:

-10-10-u-(10+2u)=0

We add all the numbers together, and all the variables

-u-(2u+10)-10-10=0

We add all the numbers together, and all the variables

-1u-(2u+10)-20=0

We get rid of parentheses

-1u-2u-10-20=0

We add all the numbers together, and all the variables

-3u-30=0

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

-3u=30

u=30/-3

u=-10

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