1. **State the problem:** Solve the linear inequality $$4 - \frac{3y}{5} \leq 7$$.
2. **Isolate the term with the variable:** Subtract 4 from both sides:
$$4 - \frac{3y}{5} - 4 \leq 7 - 4$$
which simplifies to
$$- \frac{3y}{5} \leq 3$$.
3. **Eliminate the fraction:** Multiply both sides by 5 (positive number, so inequality direction stays the same):
$$5 \times \left(- \frac{3y}{5}\right) \leq 3 \times 5$$
which simplifies to
$$-3y \leq 15$$.
4. **Solve for y:** Divide both sides by -3. Since dividing by a negative number reverses the inequality:
$$y \geq \frac{15}{-3}$$
which simplifies to
$$y \geq -5$$.
5. **Answer:** The solution is $$y \geq -5$$, which corresponds to option B.
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**How to solve linear inequalities with mixed numbers:**
- Convert mixed numbers to improper fractions first.
- Then follow the same steps: isolate the variable, clear fractions by multiplying, and remember to flip the inequality sign when multiplying or dividing by a negative number.
This method works for all linear inequalities, whether numbers are whole, fractions, or mixed numbers.
Linear Inequality 03A37B
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