Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 6 - Systems of Equations and Inequalities - 6-3 Solving Systems Using Elimination - Practice and Problem-Solving Exercises - Page 382: 20

Answer

(4,7)

Work Step by Step

Multiply the first equation by 3 and the second by -5 then add the equations together -67y = -469 divide -67 from both sides plug in y= 7 into one of the equations 3x + 8(7) = 68 subtract 56 from both sides 3x = 12 divide 3 from both sides
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