Answer
$22r-1$.
Work Step by Step
The given expression is
$=5(2r+1)-3(-4r+2)$
Use distributive property.
$=10r+5+12r-6$
Group like terms.
$=10r+12r+5-6$
Combine like terms.
$=22r-1$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 7 - Polynomial Equations and Factoring - 7.1 - Adding and Subtracting Polynomials - Exercises - Page 364: 64
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