Jennifer's teacher has marked this problem as one to recheck, but Jennifer cannot determine what she has done incorrectly. Identify Jennifer's error and write a correct solution.

Eight less than 2 times a number is 40. What is the number?

2x – 8 = 40 (line 1)

2x – 8 – 8 = 40 – 8 (line 2)

2x = 32 (line 3)

2x ÷ 2 = 32 ÷ 2 (line 4)

x = 16 (line 5)