Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 1 - Expressions, Equations, and Inequalities - 1-4 Solving Equations - Practice and Problem-Solving Exercises - Page 31: 51



Work Step by Step

$R(r_{1}+r_{2})=r_{1}r_{2}$ $Rr_{1}+Rr_{2}=r_{1}r_{2}$ $Rr_{1}=r_{1}r_{2}-Rr_{2}$ $Rr_{1}=r_{2}(r_{1}-R)$ $r_{2}=Rr_{1}\div({r_{1}-R})$
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