Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Appendix - Extra Word Problems: 45

Answer

The width is 10 centimeters

Work Step by Step

We consider the width of the box as $x$ centimeters. Therefore, three times the width is $3x$ cm. Since the length ($34$ cm) is $4$ centimeters more than three times the width, we write the following equation and solve: $34-3x=4$ $-3x=4-34$ $-3x=-30$ $x=\frac{-30}{-3}$ $x=10$ Therefore, the width is 10 centimeters.
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