(0.1/0.4)^x=5/20

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Solution for (0.1/0.4)^x=5/20 equation: 



(0.1/0.4)^x=5/20

We move all terms to the left:

(0.1/0.4)^x-(5/20)=0



Domain of the equation: 0.4)^x!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

(+0.1/0.4)^x-(+5/20)=0

We get rid of parentheses

(+0.1/0.4)^x-5/20=0

We calculate fractions


()/(0.4)^x*20)+x/(0.4)^x*20)=0

We can not solve this equation

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