Algebra: A Combined Approach (4th Edition)

by Martin-Gay, Elayn

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: 82

Answer

$(360-9x)$°

Work Step by Step

The sum of the angles is 360° The fourth angle equals to $360-x-3x-5x=360-9x$

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