1/3x+18=21

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Solution for 1/3x+18=21 equation: 



1/3x+18=21

We move all terms to the left:

1/3x+18-(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-3=0

We multiply all the terms by the denominator


-3*3x+1=0

Wy multiply elements

-9x+1=0

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

-9x=-1

x=-1/-9

x=1/9

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