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

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Solution for 7(u+9)=-2u-9 equation: 



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

We move all terms to the left:

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

We multiply parentheses

7u-(-2u-9)+63=0

We get rid of parentheses

7u+2u+9+63=0

We add all the numbers together, and all the variables

9u+72=0

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

9u=-72

u=-72/9

u=-8

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