The work of a student trying to solve the equation 4(2x – 1) = 11 + 3x + 5 is shown below:
step 1: 4(2x – 1) = 11 + 3x + 5
step 2: 8x – 4 = 16 + 3x
step 3: 8x + 3x = 16 – 4
step 4: 11x = 24
step 5: x = 2.18
in which step did the student first make an error and what is the correct step? (4 points)
step 2: 8x – 1 = 16 + 3x
step 2: 8x – 8 = 6 + 3x
step 3: 8x – 3x = 16 + 4
step 3: 8x + 3x = 16 – 8