Subjects algebra

Inequality Solve 3D465B

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Question: Solve the inequality for $y$: $-12 < \frac{8}{3} y$
1. **State the problem:** Solve the inequality $-12 < \frac{8}{3} y$ for $y$. 2. **Recall the rule:** When multiplying or dividing both sides of an inequality by a positive number, the inequality direction stays the same. When multiplying or dividing by a negative number, the inequality direction reverses. 3. **Isolate $y$:** To isolate $y$, divide both sides by $\frac{8}{3}$, which is positive, so the inequality direction remains the same. 4. **Divide both sides:** $$ -12 < \frac{8}{3} y \\ \Rightarrow \frac{-12}{\frac{8}{3}} < y $$ 5. **Simplify the division:** $$ \frac{-12}{\frac{8}{3}} = -12 \times \frac{3}{8} = \frac{-36}{8} = \frac{-9}{2} $$ 6. **Final inequality:** $$ y > \frac{-9}{2} $$ 7. **Interpretation:** The solution is all $y$ values greater than $-\frac{9}{2}$. **Answer:** $y > -\frac{9}{2}$