The work of a student to solve the equation
2 (3x - 4) = 8 + 2x + 4 is shown below:
Step 1: 2 (3x - 4) = 8 + 2x + 4
Step 2: 5x - 6 = 12 + 2x
Step 3: 5x - 2x = 12 + 6
Step 4: 3x = 18
Step 5: x = 6
In which step did the student first make an error and what is the correct step?
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