Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 6 - Algebra: Equations and Inequalities - 6.2 Linear Equations in One Variable and Proportions - Exercise Set 6.2: 3

Answer

{-17}.

Work Step by Step

x+5 = -12 Step 1: subtract 5 from both the sides x+5-5= -12-5 Step 2: Simplify x= -17 Now we check the proposed solution, -17, by replacing x with -17 in the original equation. Step 1: the original equation x+5 =-12 Step2: Substitute -17 for x -17 +5 = -12 Step 3: Solve -17+5= -12 -12 = -12 Since the check results in true statement, we conclude that the solution set of the given equation is {-17}.
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