(5x+3)/(x+3)=(7)

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Solution for (5x+3)/(x+3)=(7) equation: 


D( x )

x+3 = 0

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

x in (-oo:-3) U (-3:+oo)

(5*x+3)/(x+3) = 7 // - 7

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

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

5*x-7*(x+3)+3 = 0

-2*x-18 = 0

(-2*x-18)/(x+3) = 0

(-2*x-18)/(x+3) = 0 // * x+3

-2*x-18 = 0

-2*x-18 = 0 // + 18

-2*x = 18 // : -2

x = 18/(-2)

x = -9

x = -9

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