Answer
$x\geq6$
Work Step by Step
$f(x)\geq 4\\1-(x+3)+2x\geq4\\1-x-3+2x\geq4\\x-2\geq4\\x\geq6$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 4 - Section 4.1 - Solving Linear Inequalities - Exercise Set - Page 262: 37
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