Answer: y=-2x+9
Step-by-step: Subtract 2x from 2x+y=9 and get y=-2x+9
You would buy two binders which would equal $10 and the three notebooks that cost $6 so in total it would be $16
So 16-6=10 which would be two binders since each one cost $5
Hope this helps! :)
2a-8a=12-8a
now add 8a to both side and you get
2a= 12
divide both sides by 2 and you get
a=6
Answer:
20%decrease
Step-by-step explanation:
sorry I'm bad at explaining things