#### Answer

k = -3

#### Work Step by Step

5k +7 = 2(6k - 14) + 56
5k +7 = 12k - 28 + 56
5k = 12k - 28 + 56 - 7
5k - 12k = -28 + 56 - 7
-7k = -28 + 56 - 7
-7k = 21
k = -3

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

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

k = -3

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