How can I prove that this function is surjective?

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If I have the follow function $ f: \mathbb{R}-\lbrace2\rbrace \rightarrow \mathbb{R} - \lbrace5\rbrace \mid f(x) = \frac{5x + 1}{x - 2}$.

Solving the equation $y = \frac{5x + 1}{x - 2}$ I arrived in $x = \frac{y - 1}{5}$ but I don't know if this is right, because when applied this in $f$ I arrived in $f(x) = \frac{5y}{y - 11}$ So I could not solve anything else.

How can I prove that she is surjective or not, if I can not think of any counterexample?

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You have ;

$y =\frac{5x+1}{x-2}$

$y(x-2) =5x+1$

$yx-2y = 5x+1$

$x(y-5) =1+2y $

$\implies x = \frac{1+2y}{y-5}$

The function is surjective