1-9(u+1)=7u

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Solution for 1-9(u+1)=7u equation: 



1-9(u+1)=7u

We move all terms to the left:

1-9(u+1)-(7u)=0

We add all the numbers together, and all the variables

-7u-9(u+1)+1=0

We multiply parentheses

-7u-9u-9+1=0

We add all the numbers together, and all the variables

-16u-8=0

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

-16u=8

u=8/-16

u=-1/2

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