138-12x=342

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Solution for 138-12x=342 equation: 



138-12x=342

We move all terms to the left:

138-12x-(342)=0

We add all the numbers together, and all the variables

-12x-204=0

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

-12x=204

x=204/-12

x=-17

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