Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 1 - Expressions, Equations, and Inequalities - 1-4 Solving Equations - Practice and Problem-Solving Exercises: 42

Answer

w = 3

Work Step by Step

Our goal is to isolate w. To accomplish this we will first combine like terms: 12-6w-3 = 7w-21-3w 9-6w = 4w-21 We will then add 6w to both sides to get all of the w's on one side: 9-6w = 4w-21 9 = 10w - 21 Next we will isolate w by adding 21 to both sides and then dividing both sides by 10: 9 = 10w - 21 30 = 10w 3 = w w = 3
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