Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.7 - Combinations of Functions; Composite Functions - Exercise Set - Page 260: 122

Answer

The value of y in the equation $Ax+By=Cy+D$ is $\frac{D-Ax}{B-C}$.

Work Step by Step

Collect all the y terms on the left side of the equation and the other terms of the equation on the right side. $Ax+By-Cy=D$ Factor y on the left side of the equation and get $y\left( B-C \right)=D-Ax$ Dividing both sides by $B-C$, we get, $\begin{align} & y\frac{\left( B-C \right)}{\left( B-C \right)}=\frac{D-Ax}{B-C} \\ & y=\frac{D-Ax}{B-C} \end{align}$ Hence, the value of y in the equation $Ax+By=Cy+D$ is $\frac{D-Ax}{B-C}$.
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