300=(1-0.2)x

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Solution for 300=(1-0.2)x equation: 



300=(1-0.2)x

We move all terms to the left:

300-((1-0.2)x)=0

We add all the numbers together, and all the variables

-((0.8)x)+300=0



We calculate terms in parentheses: -((0.8)x), so:

(0.8)x

We multiply parentheses

0.8x

Back to the equation:

-(0.8x)



We add all the numbers together, and all the variables

-(+0.8x)+300=0

We get rid of parentheses

-0.8x+300=0

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

-0.8x=-300

x=-300/-0.8

x=+375

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