-1/3x-9=12

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Solution for -1/3x-9=12 equation: 



-1/3x-9=12

We move all terms to the left:

-1/3x-9-(12)=0



Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



We add all the numbers together, and all the variables

-1/3x-21=0

We multiply all the terms by the denominator


-21*3x-1=0

Wy multiply elements

-63x-1=0

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

-63x=1

x=1/-63

x=-1/63

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