Respuesta :

Answer:

A) 9

Step-by-step explanation:

R=7x+17

S=4x-6

Q=180-110=70

  • 4x-6+7x+17+70=180
  • 11x+81=190
  • 11x=180-81
  • 11x=99
  • x=99/11
  • x=9