Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.8 - Inequalities - 1.8 Exercises - Page 89: 20

Answer

The solution is $\Big(-\infty,\dfrac{5}{2}\Big)$
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Work Step by Step

$0\lt5-2x$ Take $-2x$ to the left side of the inequality: $2x\lt5$ Take the $2$ to divide the right side: $x\lt\dfrac{5}{2}$ Express using interval notation: The solution is $\Big(-\infty,\dfrac{5}{2}\Big)$
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