Answer
$r\lt -2$
The graph is shown below.
Work Step by Step
The given inequality is
$\Rightarrow r-4\lt -6$
Add $4$ to each side.
$\Rightarrow r-4+4\lt -6+4$
Simplify.
$\Rightarrow r\lt -2$
Hence, the solution is $r\lt -2$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 2 - Solving Linear Inequalities - Chapter Review - Page 94: 7
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