diketahui f(x) =2x+4 /x-3 maka invers dari f(x) ...... tolong di bantu ya kalau tau cara nya mohon di tulis ya

y = (2x+4)/(x-3)
xy - 3y = 2x + 4
xy - 2x = 4 + 3y
x (y-2) = 4+3y
x = (4+3y)/(y-2)
f^-1(x) = (4+3x)/(x-2)

Jika f(x) = (ax + b) / (cx + d)
Maka :
f^-1(x) = ( -dx + b ) / (cx - a)

f(x) = (2x + 4) / ( x - 3)
a = 2 b = 4 c = 1 d = -3

f^-1(x) = (3x + 4) / (x - 2)