Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix D - Exercise Set: 39



Work Step by Step

You will need to create two seperate equations. x+4=7-x x+4-4=7-4-x x=3-x x+x=3-x+x 2x=3 2x/2=3/2 x=3/2 and x+4=-7+x x+4-4=-7-4+x x=-11+x x-x=-11+x-x 0x=-11 no solution The solution set is {3/2}.
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