3x-9=8x+9

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Solution for 3x-9=8x+9 equation: 



3x-9=8x+9

We move all terms to the left:

3x-9-(8x+9)=0

We get rid of parentheses

3x-8x-9-9=0

We add all the numbers together, and all the variables

-5x-18=0

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

-5x=18

x=18/-5

x=-3+3/5

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