-u+10+7=-10+2u

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Solution for -u+10+7=-10+2u equation: 



-u+10+7=-10+2u

We move all terms to the left:

-u+10+7-(-10+2u)=0

We add all the numbers together, and all the variables

-u-(2u-10)+10+7=0

We add all the numbers together, and all the variables

-1u-(2u-10)+17=0

We get rid of parentheses

-1u-2u+10+17=0

We add all the numbers together, and all the variables

-3u+27=0

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

-3u=-27

u=-27/-3

u=+9

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