Question

The steps below show the incomplete solution to find the value of q for the equation 4q - 2q - 4 = -1 + 21

Step 1: 4q - 2q - 4 = -1 + 21

Step 2: 4q - 2q - 4 = 20

Step 3: 2q - 4 = 20

Which of these is most likely the next step?

Answer 1

2q-4=20

Explanation:

Answer 2

As you did not provide any "next steps", I would do it this way:

2q - 4 = 20 // add 4 to both sides

2q = 24 // divide both sides by 2

q = 12