Respuesta :

Answer and Step-by-step explanation:

7. 70 - 180 = 110

8.  39 - 180 = 141

9. 81 - 180 = 99

10. 81 - 180 = 99

11. 115 - 180 = 65

12.  41+36 = 77 - 180 = 103

x = answer