80/5=100/x

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Solution for 80/5=100/x equation: 



80/5=100/x

We move all terms to the left:

80/5-(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)+80/5=0

We add all the numbers together, and all the variables

-(+100/x)+16=0

We get rid of parentheses

-100/x+16=0

We multiply all the terms by the denominator


16*x-100=0

We add all the numbers together, and all the variables

16x-100=0

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

16x=100

x=100/16

x=6+1/4

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