20 is a solution to this equality.
Work Step by Step
We follow the instructions and plug 20 in for a. This gives us the following: 80=4(20) 80=80 80 does equal 80, so 20 is a solution to this equality.
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.