Jika f (3x-5)=7x+2, maka f-¹(x)=

misalkan 3x - 5 = a
f (a) = 7 ( a +5/3) + 2
= 7/3 ( a + 5) +2
= 7/3 a + 41/3
f (x ) = 7/3 x + 41/3

misalkan 7/3x+ 41/3 = y
7x + 41 = 3y
7x=3y-41
x = (3y -41)/7
f^-1(x)= (3x-41)/7