Answer:
123
Step-by-step explanation:
hope this helps
(1 - y)12 represents the price of the set of tennis balls after a coupon was applied.
By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers.
Hopefully this helps :)
The answer for this question is Y=3x+1
