-u+1=-2u+9

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Solution for -u+1=-2u+9 equation: 



-u+1=-2u+9

We move all terms to the left:

-u+1-(-2u+9)=0

We add all the numbers together, and all the variables

-1u-(-2u+9)+1=0

We get rid of parentheses

-1u+2u-9+1=0

We add all the numbers together, and all the variables

u-8=0

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

u=8

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