Respuesta :

Answer:

9

Step-by-step explanation:

[tex]x^{2}[/tex]  - 36 = 5x

[tex]x^{2}[/tex] - 36 = 5x

[tex]x^{2}[/tex] -5x = 36

[tex]9^{2}[/tex] - 45 = 36

  + 45  + 45

-----------------------

81 = 81 ✅

[tex]9^{2}[/tex] - 36 = 5(9)

81 - 36 = 45 ✅