If the point $(3, 75)$ lies on the graph of the equation $y = 20x + 15$, which of the following statements must be true?

$x = 75$ is a solution to $y = 20(75) + 15$

$x = 3$ is a solution to $75 = 20x + 15$

$x = 20$ is a solution to $y = 3x + 15$

$x = 3$ is a solution to $y = 75x + 15$

Graphing Solutions of Two-Step Equations Practice — Grade 7 math