1/3x-9=21

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Solution for 1/3x-9=21 equation: 



1/3x-9=21

We move all terms to the left:

1/3x-9-(21)=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-30=0

We multiply all the terms by the denominator


-30*3x+1=0

Wy multiply elements

-90x+1=0

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

-90x=-1

x=-1/-90

x=1/90

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