Answer
-2a + 6
Work Step by Step
(5a - 1) - [3a + (4a - 7)] =
Remove round brackets.
5a - 1 - [3a + 4a - 7] =
Use the distributive property:
5a - 1 - 3a - 4a + 7 =
Group similar terms.
(5a - 3a - 4a) + (-1 + 7) =
Simplify.
-2a + 6
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 - 5.1 - Addition and Subtraction of Polynomials - Problem Set 5.1 - Page 195: 67
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