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: 30

Answer

x = -5

Work Step by Step

Solve : x/5 - x/2 = 3 + 3x/10 (multiply by 10 on both sides) 10(x/5) - 10(x/2) = 10(3) + 10(3x/10) 2x - 5x = 30 + 3x -6x = 30 x = -5 Check : LHS = x/5 - x/2 = -5/5 - (-5/2) = -1 + 2.5 = 1.5 RHS = 3 + 3x/10 = 3 + 3(-5/10) = 3 - 1.5 = 1.5 LHS = RHS, Hence verified
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