90/3=100/x

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Solution for 90/3=100/x equation: 



90/3=100/x

We move all terms to the left:

90/3-(100/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

-(+100/x)+90/3=0

We add all the numbers together, and all the variables

-(+100/x)+30=0

We get rid of parentheses

-100/x+30=0

We multiply all the terms by the denominator


30*x-100=0

We add all the numbers together, and all the variables

30x-100=0

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

30x=100

x=100/30

x=3+1/3

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