Answer
a.$-24$
b.$-3$
Work Step by Step
Follow the order of operations, "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".
a.$-9+[(-4-1)-10] =-9+(-5-10)=-9-15=-24$
b.$5^{2}-20+[-11-(-3)] = 25-20-8=5-8=-3$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 1 - Section 1.5 - Subtracting Real Numbers - Practice - Page 41: 7
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