Algebra 2 Common Core

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

Chapter 3 - Linear Systems - 3-2 Solving Systems Algebraically - Practice and Problem-Solving Exercises: 22

Answer

$x = 7$, $y=5$

Work Step by Step

Given: $x + y = 12$ $x - y = 2$ Add the equations together by adding the corresponding parts: $x + y + (x - y) = 12 + (2) \\2x=14$ Divide both sides by 2: $x = 7$ Substitute $7$ into $x$ of the first equation: $(7) + y = 12$ Subtract 7 to both sides: $y = 5$ Thus, $x = 7$, $y=5$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.