Determining Dr. Johnson’s Age
The Question from His Nephew
Dr. Johnson’s nephew inquired about his age. In response, Dr. Johnson stated that if you take half of his age and add 7, you will discover how old he was 13 years ago.
Setting Up the Equation
Let X represent Dr. Johnson’s current age. The relationship can be expressed mathematically as follows:
X/2 + 7 = X – 13
Solve for X
By solving the equation, we find:
X = 40
Conclusion
Thus, Dr. Johnson is currently 40 years old.