Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.1 - The Additon Property of Equality - Exercise Set - Page 103: 81

Answer

$(173-3x)°$

Work Step by Step

The sum of the angles of a triangle is 180°. The third angle equals to $180-x-(2x+7)=180-3x-7=173-3x$
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