Answer
(-infinity, -1]
Work Step by Step
Original Inequality
-2x+7$\geq$9
Subtract 7 from both sides
-2x$\geq$2
Divide both sides by -2
x$\leq$-1
Write in interval notation
(-infinity,-1)
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 2 - Section 2.4 - Linear Inequalities and Problem Solving - Exercise Set - Page 85: 23
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