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?
a. step 2: 8x − 1 = 16 + 3x
b. step 2: 8x − 8 = 6 + 3x
c. step 3: 8x − 3x = 16 + 4
d. step 3: 8x + 3x = 16 − 8