-1-8u=7u-9

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Solution for -1-8u=7u-9 equation: 



-1-8u=7u-9

We move all terms to the left:

-1-8u-(7u-9)=0

We get rid of parentheses

-8u-7u+9-1=0

We add all the numbers together, and all the variables

-15u+8=0

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

-15u=-8

u=-8/-15

u=8/15

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