12x+-20=-40

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Solution for 12x+-20=-40 equation: 



12x+-20=-40

We move all terms to the left:

12x+-20-(-40)=0

We add all the numbers together, and all the variables

12x+20=0

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

12x=-20

x=-20/12

x=-1+2/3

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