-u+9=8-u

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Solution for -u+9=8-u equation: 



-u+9=8-u

We move all terms to the left:

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

We add all the numbers together, and all the variables

-u-(-1u+8)+9=0

We add all the numbers together, and all the variables

-1u-(-1u+8)+9=0

We get rid of parentheses

-1u+1u-8+9=0

We add all the numbers together, and all the variables

1!=0

There is no solution for this equation

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