find the sum of 4, eight times a number, and nine times the same number. simplify the expression.

Answer 1

Let "n" be the number. Then 8n is eight times the number and 9n is nine times the number. The sum is 4 + 8n + 9n

To simplify, combine like-terms. 8n + 9n = 17n so it becomes 4 + 17n