12x+13=-9+20

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Solution for 12x+13=-9+20 equation: 



12x+13=-9+20

We move all terms to the left:

12x+13-(-9+20)=0

We add all the numbers together, and all the variables

12x+13-11=0

We add all the numbers together, and all the variables

12x+2=0

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

12x=-2

x=-2/12

x=-1/6

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