Respuesta :

mhanifa

Answer:

  • x = 2

Step-by-step explanation:

Vertical angles are equal as per definition.

  • ∠E and ∠F are vertical angles
  • m∠E = 9x+12 and m∠F = 3x+24
  • x = ?

Solution

  • 9x+12 = 3x+24
  • 9x - 3x = 24 - 12
  • 6x = 12
  • x = 2