Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - Chapter 1 Review Problem Set - Page 38: 28



Work Step by Step

This problem only involves addition and subtraction, so we start on the left and go right according to order of operations. Using order of operations, the given expression, $ 19-23-14+21+14-13 ,$ simplifies to \begin{array}{l}\require{cancel} -4-14+21+14-13 \\\\= -18+21+14-13 \\\\= 3+14-13 \\\\= 17-13 \\\\= 4 .\end{array}
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