Elementary Algebra

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

Chapter 2 - Real Numbers - 2.5 - Translating from English to Algebra - Problem Set 2.5 - Page 81: 44


Dudley is $3x+1$ years old.

Work Step by Step

Starting at Jack's age, $x$, we must first multiply by $3$ because it says "$3$ times as old as Jack," giving us $3x$. We must then add $1$ to this product to arrive at Dudley's age, for it says that Dudley's age is $1$ more than this product. This gives us $3x+1$.
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