-9-5u=9-7u

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Solution for -9-5u=9-7u equation: 



-9-5u=9-7u

We move all terms to the left:

-9-5u-(9-7u)=0

We add all the numbers together, and all the variables

-5u-(-7u+9)-9=0

We get rid of parentheses

-5u+7u-9-9=0

We add all the numbers together, and all the variables

2u-18=0

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

2u=18

u=18/2

u=9

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