#### Answer

r = -11/13

#### Work Step by Step

5r - 9 = 18r + 2
5r - 9 - 2 = 18r + 2 -2
5r - 11 = 18r
5r - 5r - 11 = 18r - 5r
-11 = 13r
r = -11/13

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

ISBN 13:
978-0-53449-636-4

r = -11/13

5r - 9 = 18r + 2
5r - 9 - 2 = 18r + 2 -2
5r - 11 = 18r
5r - 5r - 11 = 18r - 5r
-11 = 13r
r = -11/13

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