Cari jawaban beserta contoh​

f(x) = 4x + 6 / x -7

y = 4x + 6 / x – 7

y (x – 7) = 4x + 6

xy – 7y = 4x + 6

xy – 4x = 7y + 6

x(y – 4) = 7y + 6

x = 7y + 6 / y – 4

f^-1(x) = 7x + 6 / x – 4