(100x-4000)/100x=0.3

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Solution for (100x-4000)/100x=0.3 equation: 



(100x-4000)/100x=0.3

We move all terms to the left:

(100x-4000)/100x-(0.3)=0



Domain of the equation: 100x!=0

x!=0/100

x!=0

x∈R



We add all the numbers together, and all the variables

(100x-4000)/100x-0.3=0

We multiply all the terms by the denominator


(100x-4000)-(0.3)*100x=0

We multiply parentheses

(100x-4000)-30x=0

We get rid of parentheses

100x-30x-4000=0

We add all the numbers together, and all the variables

70x-4000=0

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

70x=4000

x=4000/70

x=57+1/7

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