7/x=21/6

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Solution for 7/x=21/6 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

7/x = 21/6 // - 21/6

7/x-(21/6) = 0

7/x-7/2 = 0

7*x^-1 = 7/2 // : 7

x^-1 = 1/2

-1 < 0

1/(x^1) = 1/2 // * x^1

1 = 1/2*x^1 // : 1/2

2 = x^1

x = 2

x = 2

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