The solution of the inequality is: \(r < \frac{1}{3}\)
Given the inequality:
\(21r<7\)
Solve for r as algebra as follows:
Divide both sides by 21
\(\frac{21r}{21} <\frac{7}{21}\\r < \frac{7}{21}\)(division property of equality)
Simplify
\(r < \frac{1}{3}\)
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