Answer
The lifespan does not change
Work Step by Step
$\left.\begin{array}{ccc}\text{(effect of aspirin)}&\text{and }&\text{ (effect of red meat)}\\
5&+&(-5)\end{array}\right.$
$5+(-5)=0$
The lifespan does not change
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.6 - Subtraction of Real Numbers - Exercise Set - Page 72: 107
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