Answer:
The number is 20
Step-by-step explanation:
Step 1: Convert words into an expression
5 less than a number is 15
5 less than a number is n - 5
n - 5 = 15
Step 2: Add 5 to both sides to get the number
n - 5 + 5 = 15 + 5
n = 20
Answer: The number is 20