12x-3x-108=90

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Solution for 12x-3x-108=90 equation: 



12x-3x-108=90

We move all terms to the left:

12x-3x-108-(90)=0

We add all the numbers together, and all the variables

9x-198=0

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

9x=198

x=198/9

x=22

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