9-7u+2=-10u-10

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Solution for 9-7u+2=-10u-10 equation: 



9-7u+2=-10u-10

We move all terms to the left:

9-7u+2-(-10u-10)=0

We add all the numbers together, and all the variables

-7u-(-10u-10)+11=0

We get rid of parentheses

-7u+10u+10+11=0

We add all the numbers together, and all the variables

3u+21=0

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

3u=-21

u=-21/3

u=-7

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