At their going-out-of-business sale, Bill's Bikes sold 40 bikes and had 54 left. Which equation could be used to find x, the number of bikes the store had originally?

A.
x + 40 = 54
B.
x - 54 = 40
C.
x + 54 = -40
D.
x - 40 = -54

1 answer

A. x + 40 = 54