12-4x-5x=9

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Solution for 12-4x-5x=9 equation: 



12-4x-5x=9

We move all terms to the left:

12-4x-5x-(9)=0

We add all the numbers together, and all the variables

-9x+3=0

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

-9x=-3

x=-3/-9

x=1/3

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