Asmaller 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)