Solve for r
r>5
Quiz
Algebra
15 < 3 r
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\frac{15}{3}<r
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
5<r
Divide 15 by 3 to get 5.
r>5
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
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