Step-by-step explanation: Since <em>z</em> is multiplied by 2, divide both sides of the equation by 2 to get <em>z</em> by itself and show all your work! That leaves you with z = 13 which is the solution to this equation.
Put both sides of the equation over 2 and cancel out the 2's on the left side just like I have done in the image provided.
Don't just do this problem in your head. It's extremely important to develop the habit of putting all your steps down on paper or digitally. It will really pay of for you down the line.