8x-9+3x=12

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Solution for 8x-9+3x=12 equation: 



8x-9+3x=12

We move all terms to the left:

8x-9+3x-(12)=0

We add all the numbers together, and all the variables

11x-21=0

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

11x=21

x=21/11

x=1+10/11

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