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 384: 45



Work Step by Step

You have the equations:4x+3y=33 and 3x+2y=23. Multiply the first equation by 3 and the second by -4: 3(4x+3y=33) 12x+9y=99 --- -4(3x+2y=23) -12x+-8y=-92 Combine the equations: 12x+9y=99 -12x-8y=-92 y=7 The y coordinate is 7.
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