# 逆関数計算機

Enter a function: $y=f(x)=$

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Your input: find the inverse of the function $y=\frac{x + 7}{3 x + 5}$

To find the inverse function, swap $x$ and $y$, and solve the resulting equation for $x$.

If the initial function is not one-to-one, then there will be more than one inverse.

So, swap the variables: $y=\frac{x + 7}{3 x + 5}$ becomes $x=\frac{y + 7}{3 y + 5}$.

Now, solve the equation $x=\frac{y + 7}{3 y + 5}$ for $y$.

$y=\frac{7 - 5 x}{3 x - 1}$

$y=\frac{7 - 5 x}{3 x - 1}$