Michelle attempted to solve the equation using the steps shown below. Step 1 is -3x -6 plus 6 equal to -10 plus 6. Step 2 is -3x equal to -4. Step 3 is -3x over -3 equal to -4 over -3. Step 4 is x equal to -4 over 3. In which step did Michelle make a mistake? A A. step 1 B B. step 2 C C. step 3 D D. step 4