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: 26

Answer

No solution

Work Step by Step

You have the equations:4x-8y=15 and -5x+10y=-30.Multiply the first equation by 5 and the second equation by 4 in order to be able to eliminate a variable: 5(4x-8y=15) 20x-40y=75 ---4(-5x+10y=-30) -20x+40y=-120 Combine the equations in order to eliminate them: 20x-40y=75 -20x+40y=-120 0=-45 The equations will never be true so there are no solutions.
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