7(u-9)=-91

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Solution for 7(u-9)=-91 equation: 



7(u-9)=-91

We move all terms to the left:

7(u-9)-(-91)=0

We add all the numbers together, and all the variables

7(u-9)+91=0

We multiply parentheses

7u-63+91=0

We add all the numbers together, and all the variables

7u+28=0

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

7u=-28

u=-28/7

u=-4

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