12+1/9x=20

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Solution for 12+1/9x=20 equation: 



12+1/9x=20

We move all terms to the left:

12+1/9x-(20)=0



Domain of the equation: 9x!=0

x!=0/9

x!=0

x∈R



We add all the numbers together, and all the variables

1/9x-8=0

We multiply all the terms by the denominator


-8*9x+1=0

Wy multiply elements

-72x+1=0

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

-72x=-1

x=-1/-72

x=1/72

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