45/x=20/4

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Solution for 45/x=20/4 equation: 



45/x=20/4

We move all terms to the left:

45/x-(20/4)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

45/x-5=0

We multiply all the terms by the denominator


-5*x+45=0

We add all the numbers together, and all the variables

-5x+45=0

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

-5x=-45

x=-45/-5

x=+9

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