1. **Problem:** Determine whether the system of equations is consistent or inconsistent, independent or dependent.
Given system:
$$\begin{cases}-3x + y = -4 \\ -4x - y = -10\end{cases}$$
2. **Step 1: Add the two equations to eliminate $y$.**
$$(-3x + y) + (-4x - y) = -4 + (-10)$$
$$-3x - 4x + y - y = -14$$
$$-7x = -14$$
3. **Step 2: Solve for $x$.**
$$x = \frac{-14}{-7} = 2$$
4. **Step 3: Substitute $x=2$ into the first equation to find $y$.**
$$-3(2) + y = -4$$
$$-6 + y = -4$$
$$y = -4 + 6 = 2$$
5. **Step 4: Check the solution in the second equation.**
$$-4(2) - 2 = -8 - 2 = -10$$
True, so the system has one unique solution $(2,2)$.
6. **Conclusion:** The system is **consistent** (has at least one solution) and **independent** (exactly one solution).
Final answer: **Consistent and independent**.
System Consistency 2218B5
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