Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Appendix - Extra Word Problems: 8

Answer

22,24,26

Work Step by Step

Let the first even number be $x$, the second even number be $x+2$, and the first third number be $x+4$. (We can say this because even numbers are two apart from each other, so we know that if the first number is x, the following numbers will be two and four greater than x, respectively.) Since the sum of the three numbers is $72$, we obtain: $x+(x+2)+(x+4)=72$ $x+x+2+x+4=72$ $3x+6=72$ $3x=72-6$ $3x=66$ $x=22$ Since $x$ is 22, $(x+2)$ is 24 and $(x+4)$ is 26.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.