Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 13, Trigonometric Ratios and Functions - 13.4 Evaluate Inverse Trigonometric Functions - 13.4 Exercises - Mixed Review - Page 830: 52



Work Step by Step

Solving the equation for x, we find: $$3\cdot \:4x=-\left(2+x\right)\cdot \:9 \\ 12x=-18-9x \\ x=-\frac{6}{7}$$ Checking this solution by plugging it back in, we find that the solution is correct.
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