20/2.5=100/x

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Solution for 20/2.5=100/x equation: 



20/2.5=100/x

We move all terms to the left:

20/2.5-(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)+20/2.5=0

We add all the numbers together, and all the variables

-(+100/x)+8=0

We get rid of parentheses

-100/x+8=0

We multiply all the terms by the denominator


8*x-100=0

We add all the numbers together, and all the variables

8x-100=0

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

8x=100

x=100/8

x=12+1/2

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