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: 25


Infinitely many solutions.

Work Step by Step

You have the equations:4x-7y=15 and -8x+14y=-30.Multiply the first equation by 2 so you can be able to eliminate a variable: 2(4x-7y=15) 8x-14y=30 Eliminate the equations by combining them: -8x+14y=-30 8x-14y=30 0=0. The equation is always true so it has infinitely many solutions
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