Final answer:
The equation 73 = n + 18 is solved by subtracting 18 from both sides, giving n = 55.
Step-by-step explanation:
The equation 73 = n + 18 is a standard linear equation in one variable (n) that you would find in a middle school mathematics class. The goal is to determine the value of n that makes the equation true. To solve for n, you would subtract 18 from both sides of the equation, which gives you n = 73 - 18. Performing the subtraction yields n = 55. This is a straightforward example of solving a linear equation, a key skill in the study of algebra.