Solve the equation 273 + y − 3x = 0 for y in terms of x.

Add $3x$ to both sides and subtract 19683 from both sides:

$$y = 3x - 19683$$

Alternatively, you could express $x$ in terms of $y$:

$$3x = y + 19683$$ $$x = \frac{1}{3}y + \frac{19683}{3}$$ $$x = \frac{1}{3}y + 6561$$

Since there is only one equation with two variables, there are infinitely many solutions, and the solution is expressed as a relationship between $x$ and $y$.

We will provide the solution for $y$ in terms of $x$.

$$\boxed{y = 3x - 19683}$$

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