Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 6 - Section 6.3 - Equations with Parentheses - Exercises - Page 242: 19

Answer

b=9

Work Step by Step

Simplifying 6b = 27 + 3b Solving 6b = 27 + 3b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-3b' to each side of the equation. 6b + -3b = 27 + 3b + -3b Combine like terms: 6b + -3b = 3b 3b = 27 + 3b + -3b Combine like terms: 3b + -3b = 0 3b = 27 + 0 3b = 27 Divide each side by '3'. b = 9 Simplifying b = 9
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