21/x+4=1

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Solution for 21/x+4=1 equation: 



21/x+4=1

We move all terms to the left:

21/x+4-(1)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

21/x+3=0

We multiply all the terms by the denominator


3*x+21=0

We add all the numbers together, and all the variables

3x+21=0

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

3x=-21

x=-21/3

x=-7

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