1800/4=8400/x

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Solution for 1800/4=8400/x equation: 



1800/4=8400/x

We move all terms to the left:

1800/4-(8400/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+8400/x)+1800/4=0

We add all the numbers together, and all the variables

-(+8400/x)+450=0

We get rid of parentheses

-8400/x+450=0

We multiply all the terms by the denominator


450*x-8400=0

We add all the numbers together, and all the variables

450x-8400=0

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

450x=8400

x=8400/450

x=18+2/3

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