Respuesta :

combine the like termssessa

Answer:

12r + t - 4r + 6t

= 8r+7t

(12r + 2t) - (4r + 10t)

= 8r−8t

12 (r + t) - 6 (r + t) + 4 (r + t) - 2 (r + t)

= 8r+8t

Step-by-step explanation: