18=-8x-9x

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Solution for 18=-8x-9x equation: 



18=-8x-9x

We move all terms to the left:

18-(-8x-9x)=0

We add all the numbers together, and all the variables

-(-17x)+18=0

We get rid of parentheses

17x+18=0

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

17x=-18

x=-18/17

x=-1+1/17

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