Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.2 - Linear Equations in One Variable - 1.2 Exercises - Page 87: 18

Answer

3

Work Step by Step

Solve for x : 7x + 2 = 23 7x = 23 - 2 = 21 x = 21/7 = 3 Check : LHS = 7x + 2 = 7(3) + 2 = 21 + 2 = 23 RHS = 23 LHS = RHS, Hence Verified
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