A smaller number is 3 less than half a larger number. The larger number is 10 times 1 less than the smaller number. Let x represent the smaller number, and let y represent the larger number. Which equation can be used to model the situation? Check all that apply

A. X=1/2y-3

B. 2x-y=-6

C. 2x-y=-3

D. X=1/2(y-3)

E. Y=10(x-1)