Solve:

(15/x) + (9x-7) / (x+2) = 9

Answer:x=3

Step-by-step explanation:

D (x)

x+2 = 0

x = 0

x+2 = 0

x+2 = 0

x+2 = 0 / / - 2

x = - 2

x = 0

x = 0

x in (-oo:-2) U (-2:0) U (0:+oo)

(9*x-7) / (x+2) + 15/x = 9 / / - 9

(9*x-7) / (x+2) + 15/x-9 = 0

(x * (9*x-7)) / (x * (x+2)) + (15 * (x+2)) / (x * (x+2)) + (-9*x * (x+2)) / (x * (x+2)) = 0

x * (9*x-7) + 15 * (x+2) - 9*x * (x+2) = 0

9*x^2-9*x^2+8*x-18*x+30 = 0

30-10*x = 0

(30-10*x) / (x * (x+2)) = 0

(30-10*x) / (x * (x+2)) = 0 / / * x * (x+2)

30-10*x = 0

30-10*x = 0 / / - 30

-10*x = - 30 / / : - 10

x = - 30 / (-10)

x = 3

x = 3