Elementary Algebra

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

Chapter 3 - Equations and Problem Solving - 3.4 - Equations Involving Parentheses and Fractional Forms - Problem Set 3.4 - Page 123: 28



Work Step by Step

The distributive property allows us to distribute anything multiplied by something inside of the parenthesis to whatever is inside of the parenthesis. Thus, we distribute the 4 to everything inside of the first set of parenthesis, the 5 to everything inside of the second set of parenthesis, and the 3 to everything in the third set of parenthesis, giving us the equation 4x-4+5x+10=3x-24. We now simplify: $9x+6=3x-24 \\\\ 6x+6=-24 \\\\ 6x=-30 \\\\ x=-5$
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