40/4=9/x

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Solution for 40/4=9/x equation: 



40/4=9/x

We move all terms to the left:

40/4-(9/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

-(+9/x)+40/4=0

We add all the numbers together, and all the variables

-(+9/x)+10=0

We get rid of parentheses

-9/x+10=0

We multiply all the terms by the denominator


10*x-9=0

We add all the numbers together, and all the variables

10x-9=0

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

10x=9

x=9/10

x=9/10

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