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 - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1: 11

Answer

$55$

Work Step by Step

Using integer operations, the given expression, $ 6\cdot7+5\cdot8-3\cdot9 ,$ simplifies to \begin{array}{l}\require{cancel} 42+40-27 \\\\= 82-27 \\\\= 55 .\end{array}
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