Solve the Inequality for r 15<3r

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Algebra

$15 < 3 r$

Rewrite so $r$ is on the left side of the inequality.

$3 r > 15$

Divide each term in $3 r > 15$ by $3$ and simplify.

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Divide each term in $3 r > 15$ by $3$ .

$\frac{3 r}{3} > \frac{15}{3}$

Simplify the left side.

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Cancel the common factor of $3$ .

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Cancel the common factor.

$\frac{3 r}{3} > \frac{15}{3}$

Divide $r$ by $1$ .

$r > \frac{15}{3}$

Simplify the right side.

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Divide $15$ by $3$ .

$r > 5$

The result can be shown in multiple forms.

Inequality Form:

$r > 5$

Interval Notation:

$(5, \infty)$

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