Respuesta :
Answer: 3
Step-by-step explanation:
Since 6 + 6 is 12 so 3 + 3 is 6 and 12 + 6 is 18 and you multiply each side by two
Answer: 3
Step-by-step explanation:
Since 6 + 6 is 12 so 3 + 3 is 6 and 12 + 6 is 18 and you multiply each side by two