Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - Get Ready! - Page 79: 4



Work Step by Step

We start with the given equation: $2x-17=4$ First, we add $17$ to both sides of the equation and simplify: $$2x-17+17=4+17$$$$2x=21$$ Next, we divide by $2$ on both sides of the equation: $$\frac{2x}{2}=\frac{21}{2}$$$$x=10.5$$
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