12x-69-3x=84

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Solution for 12x-69-3x=84 equation: 



12x-69-3x=84

We move all terms to the left:

12x-69-3x-(84)=0

We add all the numbers together, and all the variables

9x-153=0

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

9x=153

x=153/9

x=17

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