2x-9+x=99

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Solution for 2x-9+x=99 equation: 



2x-9+x=99

We move all terms to the left:

2x-9+x-(99)=0

We add all the numbers together, and all the variables

3x-108=0

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

3x=108

x=108/3

x=36

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