4/x+21=19

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Solution for 4/x+21=19 equation: 



4/x+21=19

We move all terms to the left:

4/x+21-(19)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

4/x+2=0

We multiply all the terms by the denominator


2*x+4=0

We add all the numbers together, and all the variables

2x+4=0

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

2x=-4

x=-4/2

x=-2

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