Answer
$12x+12$
Work Step by Step
$(3x+7)+(9x+5)$
Remove both parentheses:
$(3x+7)+(9x+5)=3x+7+9x+5=...$
Simplify by combining like terms:
$...=(3+9)x+(7+5)=12x+12$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set - Page 371: 1
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