.86=1/1.05^x

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Solution for .86=1/1.05^x equation: 



.86=1/1.05^x

We move all terms to the left:

.86-(1/1.05^x)=0



Domain of the equation: 1.05^x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(1/1.05^x)+0.86=0

We get rid of parentheses

-1/1.05^x+0.86=0

We multiply all the terms by the denominator


(0.86)*1.05^x-1=0

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

(0.86)*1.05^x=1

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