x+2(-x-9)=0

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Solution for x+2(-x-9)=0 equation: 



x+2(-x-9)=0

We add all the numbers together, and all the variables

x+2(-1x-9)=0

We multiply parentheses

x-2x-18=0

We add all the numbers together, and all the variables

-1x-18=0

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

-x=18

x=18/-1

x=-18

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