Respuesta :

Answer:

A

Step-by-step explanation:

Answer:

A. 9

See below, please.

Step-by-step explanation:

[tex]{(5x + 27)}^{o} = {(3x + 45)}^{o} \\ 5x + 27 = 3x + 45 \\ 5x - 3x = 45 - 27 \\ 2x = 18 \\ so \\ x = 9[/tex]