12x-(-1)=9

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Solution for 12x-(-1)=9 equation: 



12x-(-1)=9

We move all terms to the left:

12x-(-1)-(9)=0

determiningTheFunctionDomain
12x-9-(-1)=0

We add all the numbers together, and all the variables

12x-8=0

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

12x=8

x=8/12

x=2/3

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