Respuesta :
Answer:
-7a-51b
Step-by-step explanation:
-21(a+2b)+14a-9b
-21a-42b+14a-9b
-21a+14a-42b-9b
-7a-42b-9b
-7a-51b
Answer: -7a - 51b
Step-by-step explanation:
see photo for work
Answer:
-7a-51b
Step-by-step explanation:
-21(a+2b)+14a-9b
-21a-42b+14a-9b
-21a+14a-42b-9b
-7a-42b-9b
-7a-51b
Answer: -7a - 51b
Step-by-step explanation:
see photo for work