ILL GIVE BRAINLIEST TO WHOEVER IS FIRST At the beginning of the week, Paloma opened a new box of 225 coffee creamers. Sixty-four coffee creamers were used during the week. Which equation could be used to find x, the number of coffee creamers left at the end of the week? A. 64x = 225
B. x + 64 = 225
C. x - 64 = 225
D. 64 - 225 = x

The answer will be b!
It wouldn’t be d because the answer would be negative!

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.