Geometry: Common Core (15th Edition)

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

Chapter 2 - Reasoning and Proof - 2-5 Reasoning in Algebra and Geometry - Lesson Check - Page 116: 4


\begin{array}{c|ll}& \textbf{Statement} & \textbf{Reasons} \\\hline1 & \text{5x+1=21} & \text{(a) Given} \\2 & \text{5x=20} & \text{(b) Subtraction Property of Equality} \\3 & \text{x=4} & \text{(c) Division Property of Equality} \end{array}

Work Step by Step

1) The starting equation is always given. 2) 1 was subtracted from each side. 3) Each side was divided by 5.
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