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 - Lesson Check - Page 381: 1



Work Step by Step

(2,3) Work Step by Step Add the two equations. 3x−2y=0 4x+2y=14 −−−−−−−−−− 7x =14 Solve for x. 7x=14 7x÷7=14÷7 x=2 Sustitute 2 for x in one of the equations and solve for y. 4(2)+2y=14 8+2y=14 8+2y−8=14−8 2y=6 2y÷2=6÷2 y=3
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