Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 6 - Cumulative Review - Page 265: 27



Work Step by Step

We find $a $ by multiplying both sides by $2$ and then isolating $a$ on one side as follows: $$C=\frac{1}{2}(a+b+c)\Longrightarrow 2C =a+b+c\\ \Longrightarrow a=2C-b-c.$$
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