40/x+20=9/x+13

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Solution for 40/x+20=9/x+13 equation: 



40/x+20=9/x+13

We move all terms to the left:

40/x+20-(9/x+13)=0



Domain of the equation: x!=0

x∈R





Domain of the equation: x+13)!=0

x∈R



We get rid of parentheses

40/x-9/x-13+20=0

We multiply all the terms by the denominator


-13*x+20*x+40-9=0

We add all the numbers together, and all the variables

7x+31=0

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

7x=-31

x=-31/7

x=-4+3/7

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