Respuesta :

AnimeBrainly
21r<7 
First you divide 21 from both sides
Note= becuz it is not a negative, you do not flip the sign*

21r/21<7/21

r<1/3
akposevictor

The solution of the inequality is: [tex]r < \frac{1}{3}[/tex]

Given the inequality:

[tex]21r<7[/tex]

Solve for r as algebra as follows:

Divide both sides by 21

[tex]\frac{21r}{21} <\frac{7}{21}\\r < \frac{7}{21}[/tex](division property of equality)

Simplify

[tex]r < \frac{1}{3}[/tex]

Learn more about inequality here:

https://brainly.com/question/24434501

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