Answer:
8x-5y=-20
Step-by-step explanation:
First you have to collect it like terms (5y-8x=20
Then reorder the terms (-8x+5y=20)
Next is to change the signs (8x-5y=-20)
Then you have your answer
It's 18 because all u have to do it divide
Answer: 12n crisp
Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n