Answer
5x + 20
Work Step by Step
If the first of five consecutive even integers is x, the second is x + 2, the third is x + 4, the fourth is x + 6, and the fifth is x + 8. The sum of the five classroom numbers is found by adding all of these expressions together:
x + (x + 2) + (x + 4) + (x + 6) + (x + 8)
= 5x + 20