#### Answer

It is a solution.

#### Work Step by Step

We plug in the given value to see if it is a solution:
$$\mid 3(1) -7 \mid =4 \\ \mid -4 \mid =4 \\ 4=4$$

Published by
McDougal Littell

ISBN 10:
0618595414

ISBN 13:
978-0-61859-541-9

It is a solution.

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