4=20+3/z

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Solution for 4=20+3/z equation: 



4=20+3/z

We move all terms to the left:

4-(20+3/z)=0



Domain of the equation: z)!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

-(3/z+20)+4=0

We get rid of parentheses

-3/z-20+4=0

We multiply all the terms by the denominator


-20*z+4*z-3=0

We add all the numbers together, and all the variables

-16z-3=0

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

-16z=3

z=3/-16

z=-3/16

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