Question: How do you write: Five times the sum of a number and one?
Answer: To write Five times the sum of a number and one you first make “a number” into a variable. In this case let’s call it k.
Let’s write the expression showing the sum of a number now: k + 1
And then to multiply five times this number, let’s multiply the expression above by five: 5⋅ (n + 1)