Respuesta :

choixongdong
3x + 10 = 5 (x - 10)
3x + 10 = 5x - 50
2x = 60
  x = 30

so 
3x + 10 = 3(30) + 10 = 100
5 (x - 10) is also equal 100

y = 360 - 100 - 100 - 110
y = 360 - 310
y = 50