(x-18)/x=0.4

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Solution for (x-18)/x=0.4 equation: 



(x-18)/x=0.4

We move all terms to the left:

(x-18)/x-(0.4)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

(x-18)/x-0.4=0

We multiply all the terms by the denominator


(x-18)-(0.4)*x=0

We multiply parentheses

(x-18)-0.4x=0

We get rid of parentheses

x-0.4x-18=0

We add all the numbers together, and all the variables

0.6x-18=0

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

0.6x=18

x=18/0.6

x=30

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