Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-2 Order of Operations and Evaluating Expressions - Practice and Problem-Solving Exercises - Page 13: 24



Work Step by Step

$\frac{2\times 7 + 4}{9\div3}$ The order of operations declares that you must multiply and divide first, then add or subtract. In this equation, we have $2\times 7$ in the numerator, so carry out that expression first. Then you are left with this equation: $\frac{14 + 4}{9\div3}$ In this equation, we have "${9\div3}$" in the denominator. According to the order of operations, this must be solved next. So far, the equation should look like this: $\frac{14 + 4}{3}$ The order of operations says that addition is the next step, so simplify the numerator, to get this: $\frac{18}{3}$ Finally, simplify this expression. 18 $\div$ 3 = 6 6 is your final answer!
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