y=x−32⇒2y=x−3⇒x=2y+3y = \frac{x - 3}{2} \Rightarrow 2y = x - 3 \Rightarrow x = 2y + 3y=2x−3⇒2y=x−3⇒x=2y+3. Logo f−1(x)=2x+3f^{-1}(x) = 2x + 3f−1(x)=2x+3