-7-10u=9-u-7u

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Solution for -7-10u=9-u-7u equation: 



-7-10u=9-u-7u

We move all terms to the left:

-7-10u-(9-u-7u)=0

We add all the numbers together, and all the variables

-10u-(-8u+9)-7=0

We get rid of parentheses

-10u+8u-9-7=0

We add all the numbers together, and all the variables

-2u-16=0

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

-2u=16

u=16/-2

u=-8

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