Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 8 - Systems of Linear Equations and Problem Solving - Connecting: The Concepts - Exercises - Page 516: 1



Work Step by Step

Equation 1 has variables isolated - select the substitution method. $x=y\qquad $(*) Replace x with y in the second equation: $ y+y=2\qquad$ ... and solve for y $2y=2$ $y=1$ Now, back-substitute into (*) $x=y$ $x=1$ Form an ordered pair $(x,y) $ as the solution to the system $(1,1)$
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