## Algebra and Trigonometry 10th Edition

Published by Cengage Learning

# Chapter 1 - 1.3 - Modeling with Linear Equations - 1.3 Exercises - Page 98: 43

97

#### Work Step by Step

$\frac{87+92+84+x}{4}=90$ 87+92+84+x = 360 x = 360 - 263 = 97

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