If f(x)=3x+6, which of the following is the inverse of f(x)

= .

Step-by-step explanation:

Given : f(x)=3x+6.

To find :  which of the following is the inverse of f(x).

Solution : We have given that f(x) = 3x+6.

Let y = f(x)

y = 3x + 6.

Now, replace x with y

x = 3y + 6.

Solving for y

On subtracting by 6 both sides

x - 6 = 3y .

On dividing by 3 both sides

= y.

Now, new y is inverse of  f(x)

y =   = .

Therefore,   = .

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