18=3/5x=21

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Solution for 18=3/5x=21 equation: 



18=3/5x=21

We move all terms to the left:

18-(3/5x)=0



Domain of the equation: 5x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+3/5x)+18=0

We get rid of parentheses

-3/5x+18=0

We multiply all the terms by the denominator


18*5x-3=0

Wy multiply elements

90x-3=0

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

90x=3

x=3/90

x=1/30

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