(7x^2-22x)/(7x-1)

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Solution for (7x^2-22x)/(7x-1) equation:


D( x )

7*x-1 = 0

7*x-1 = 0

7*x-1 = 0

7*x-1 = 0 // + 1

7*x = 1 // : 7

x = 1/7

x in (-oo:1/7) U (1/7:+oo)

(7*x^2-(22*x))/(7*x-1) = 0

(7*x^2-22*x)/(7*x-1) = 0

7*x^2-22*x = 0

x*(7*x-22) = 0

7*x-22 = 0 // + 22

7*x = 22 // : 7

x = 22/7

x*(x-22/7) = 0

(x*(x-22/7))/(7*x-1) = 0

( x-22/7 )

x-22/7 = 0 // + 22/7

x = 22/7

( x )

x = 0

x in { 22/7, 0 }

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