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: 8



Work Step by Step

6x =18 Step 1: Divide both the sides by 6 $\frac{6x}{6}$ = $\frac{18}{6}$ Step 2: Simplify x= 3 Now we check the proposed solution, 3, by replacing x with 3 in the original equation. Step 1: the original equation 6x=18 Step2: Substitute 3 for x 6.3 = 18 Step 3: Solve 6.3=18 18 = 18 Since the check results in true statement, we conclude that the solution set of the given equation is {3}.
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