2/(7+x)=3

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Solution for 2/(7+x)=3 equation: 


D( x )

x+7 = 0

x+7 = 0

x+7 = 0

x+7 = 0 // - 7

x = -7

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

2/(x+7) = 3 // - 3

2/(x+7)-3 = 0

2/(x+7)+(-3*(x+7))/(x+7) = 0

2-3*(x+7) = 0

-3*x-19 = 0

(-3*x-19)/(x+7) = 0

(-3*x-19)/(x+7) = 0 // * x+7

-3*x-19 = 0

-3*x-19 = 0 // + 19

-3*x = 19 // : -3

x = 19/(-3)

x = -19/3

x = -19/3

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