-x-12x=216

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Solution for -x-12x=216 equation: 



-x-12x=216

We move all terms to the left:

-x-12x-(216)=0

We add all the numbers together, and all the variables

-13x-216=0

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

-13x=216

x=216/-13

x=-16+8/13

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