192/(7x+5,5)=12

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Solution for 192/(7x+5,5)=12 equation: 


D( x )

7*x+5.5 = 0

7*x+5.5 = 0

7*x+5.5 = 0

7*x+5.5 = 0 // - 5.5

7*x = -5.5 // : 7

x = -5.5/7

x = -0.78571429

x in (-oo:-0.78571429) U (-0.78571429:+oo)

192/(7*x+5.5) = 12 // - 12

192/(7*x+5.5)-12 = 0

192/(7*x+5.5)+(-12*(7*x+5.5))/(7*x+5.5) = 0

192-12*(7*x+5.5) = 0

126-84*x = 0

(126-84*x)/(7*x+5.5) = 0

(126-84*x)/(7*x+5.5) = 0 // * 7*x+5.5

126-84*x = 0

126-84*x = 0 // - 126

-84*x = -126 // : -84

x = -126/(-84)

x = 3/2

x = 3/2

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