Answer
$x\geq[(a+b)c/ab$
Work Step by Step
$a(bx-c)\geq$bc
$bx-c\geq$bc/a
$bx\geq$bc/a +c
$x\geq$(a+b)c/ab
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Appendix A - Numbers, Inequalities, and Absolute Values - A Exercises - Page A10: 57
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