Answer
28
Work Step by Step
Because multiplication is before subtraction and addition in order of operations, we first multiply and then we add and subtract.
$-6-(-12)+(-20)-(-42)=-6+12-20+42=28$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.4 - Integers: Multiplication and Division - Problem Set 1.4 - Page 26: 57
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