x-9=2x+8

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Solution for x-9=2x+8 equation: 



x-9=2x+8

We move all terms to the left:

x-9-(2x+8)=0

We get rid of parentheses

x-2x-8-9=0

We add all the numbers together, and all the variables

-1x-17=0

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

-x=17

x=17/-1

x=-17

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