Answer: A/3 - 7
To solve this equation we must leave Z alone on one side of the equation. Therefore, we must get rid of any other numbers on that side. What we do on one side, we must do on the other.
A = 3*(Z + 7) - Divide three on both sides.
A/3 = Z + 7 - Subtract 7 on both sides.
A/3 - 7 = Z
Now that Z is alone on one side, we have found our answer.
