140/28=15/x

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Solution for 140/28=15/x equation: 



140/28=15/x

We move all terms to the left:

140/28-(15/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

-(+15/x)+140/28=0

We add all the numbers together, and all the variables

-(+15/x)+5=0

We get rid of parentheses

-15/x+5=0

We multiply all the terms by the denominator


5*x-15=0

We add all the numbers together, and all the variables

5x-15=0

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

5x=15

x=15/5

x=3

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