Answer:
<u>The correct answer is A. Divide both sides by positive 5</u>
Step-by-step explanation:
Let's solve the equation for finding z and the necessary steps to do it:
5z - 3 = 12
5z = 12 + 3 (Adding 3 at the right side and subtracting 3 at the left side)
5z = 15 (Adding 12 plus 3 at the right side)
5z/5 = 15/5 (Dividing by positive 5 at both sides)
<u>z = 3</u>
<u>The correct answer is A. Divide both sides by positive 5</u>