Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.8 - Exponents and Order of Operations - Exercise Set: 51

Answer

$\frac{4}{3}$

Work Step by Step

[7+3(2$^3$-1)]$\div$21 First solve the exponent inside the parentheses [7+3(8-1)]$\div$21 Then subtract inside the parentheses [7+3(7)]$\div$21 Then multiply inside the brackets [7+21]$\div$21 Then add inside the brackets [28]$\div$21 Then divide $\frac{28}{21}$ Then reduce by 7 $\frac{4}{3}$
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