7(2+1/x)=21

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Solution for 7(2+1/x)=21 equation: 



7(2+1/x)=21

We move all terms to the left:

7(2+1/x)-(21)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

7(1/x+2)-21=0

We multiply parentheses

7x+14-21=0

We add all the numbers together, and all the variables

7x-7=0

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

7x=7

x=7/7

x=1

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