Answer: Sorry I don't know the answer but I recommend an app that will help you is called Mathpapa is really helpful and have helped me get A on test and homework
Step-by-step explanation: is htis one https://www.mathpapa.com/algebra-calculator.html
Answer:
sorry i dont know
Step-by-step explanation:
hope this is helpful
Answer:
C -6
step by step explanation:
Answer:
21
Step-by-step explanation:
21-12=9