The steps below show the incomplete solution to find the value of x for the equation

6x − 2x − 5 = −6 + 21:


Step 1: 6x − 2x − 5 = −6 + 21

Step 2: 6x − 2x − 5 = 15

Step 3: 4x − 5 = 15


Which of these is most likely the next step?




4x=10

4x=3

4x=45

4x=20