Answer
2
Work Step by Step
Whenever you multiply an expression by a constant, you must cancel it out by multiplying by its reciprocal. Thus, since it is multiplied by 1/2, the blank must be $2$.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Appendix A - A Exercises - Page A6: 27
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