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: 70

Answer

$(36 + 12) \div (3 + 3) + 6 \times 2 = 20$

Work Step by Step

Note: For these questions, trial and error might help. 1) Use brackets and parenthesis to make it clear which steps need to be done first. 2) Follow BEDMAS in Step #3: Division goes first, then multiplication, and finally addition. $36 + 12 \div 3 + 3 + 6 \times 2 = 30$ $(36 + 12) \div (3 + 3) + 6 \times 2 = 20$ $[(48) \div (6)] + (6 \times 2) = 20$ $[8] + (12) = 20$ $20 = 20$
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