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: 1

Answer

{10}

Work Step by Step

x-7 = 3 Step 1: Add 7 on both the sides x-7+7 = 3+7 Step 2: Simplify x= 10 Now we check the proposed solution, 10, by replacing x with 10 in the original equation. Step 1: the original equation x-7 =3 Step2: Substitute 10 for x 10 - 7 = 3 Step 3: Subtract 10-7 = 3 3=3 Since the check results in true statement, we conclude that the solution set of the given equation is {10}.
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