Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - 5.1 - Addition and Subtraction of Polynomials - Problem Set 5.1: 34

Answer

$2x-11$

Work Step by Step

We write an expression to express this subtraction problem: $(-x-9)-(-3x+2)$ We use the commutative, associative, and distributive properties to group like terms: $(-1-(-3))x+(-9-(2))$ We combine the like terms within each set of parentheses: $2x+(-11)=2x-11$
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