Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.5 - Compound Inequalities - Exercise Set - Page 94: 39


$\left[ 2,\infty \right)$

Work Step by Step

Solving the inequalities separately results to \begin{array}{l} -2x\le-4\\ x\ge2 ,\\\\\text{OR}\\\\ 5x-20\ge5\\ 5x\ge25\\ x\ge5 .\end{array} Using the conjuntion "or" the solution set is the combined solutions sets of both inequalities. Hence, the solution set is $ \left[ 2,\infty \right) $.
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