1. **State the problem:** Solve the system of equations:
$$-4x - 4y = 7$$
$$4y - y = 2$$
2. **Simplify the second equation:**
$$4y - y = 3y$$
So the system becomes:
$$-4x - 4y = 7$$
$$3y = 2$$
3. **Solve for $y$ from the second equation:**
$$y = \frac{2}{3}$$
4. **Substitute $y = \frac{2}{3}$ into the first equation:**
$$-4x - 4\left(\frac{2}{3}\right) = 7$$
5. **Simplify:**
$$-4x - \frac{8}{3} = 7$$
6. **Add $\frac{8}{3}$ to both sides:**
$$-4x = 7 + \frac{8}{3}$$
$$-4x = \frac{21}{3} + \frac{8}{3} = \frac{29}{3}$$
7. **Divide both sides by $-4$:**
$$x = \frac{\cancel{1}}{\cancel{-4}} \times \frac{29}{3} = -\frac{29}{12}$$
8. **Final solution:**
$$x = -\frac{29}{12}, \quad y = \frac{2}{3}$$
Linear System Dbe40C
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