Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 50: 19

Answer

x=6

Work Step by Step

16 = 3(x - 1) - (x - 7) Expand 3(x - 1) = 3x - 3 Expand - (x - 7) = -x + 7 Rewrite the equation: 16 = 3x - 3 - x + 7 Combine like terms: 16 + 3 - 7 = 3x - x 12 = 2x Divide both sides by 2: x = 6 Check: 16 = 3(x - 1) - (x - 7) 16 = 3 (6-1) - (6-7) 16 = 3(5) - (-1) 16 = 15 + 1 16 = 16 -->TRUE
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.