2u+9=-9u+9

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Solution for 2u+9=-9u+9 equation: 



2u+9=-9u+9

We move all terms to the left:

2u+9-(-9u+9)=0

We get rid of parentheses

2u+9u-9+9=0

We add all the numbers together, and all the variables

11u=0

u=0/11

u=0

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