Answer
-27a - 7
Work Step by Step
-(a + 4) + 5(-a - 2) - 7(3a - 1) =
Use the distributive property to remove parenthesis:
-a - 4 - 5a - 10 - 21a + 7 =
Group similar terms.
(-a - 5a - 21a) + (-4 - 10 + 7) =
-27a - 7
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set - Page 230: 9
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