Respuesta :
Answer:
15x
Step-by-step explanation:
9x + 6x = 15x
-4 +4 = 0
15x
Answer:
15x
Step-by-step explanation:
9x - 4 + 6x + 4
15x + 0
= 15x
Answer:
15x
Step-by-step explanation:
9x + 6x = 15x
-4 +4 = 0
15x
Answer:
15x
Step-by-step explanation:
9x - 4 + 6x + 4
15x + 0
= 15x