Answer
a.5
b. 8-x
Work Step by Step
a. If the sum of two numbers equal 8 and one of them is 3, then 8-3=5. So 5 is correct.
b. If the sum of two numbers equal 8 and one of them is x, then 8-x represents the other number.
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.