Answer:
[tex]d = \sqrt{13} \: units[/tex]
Step-by-step explanation:
distance from the point P
(5, 3) to the line x = 7 = (7, 0)
[tex]d = \sqrt{ {(7 - 5)}^{2} + {(0 - 3)}^{2} } \\ \\ d = \sqrt{ {(2)}^{2} + {( - 3)}^{2} } \\ \\ d = \sqrt{4 + 9} \\ \\ d = \sqrt{13} \: units[/tex]