1. **State the problem:** Solve the system of linear equations:
$$\begin{cases} x + y = 6 \\ x - y = 2 \end{cases}$$
2. **Formula and rules:** To solve a system of linear equations, we can use the addition (elimination) method or substitution method. Here, elimination is straightforward.
3. **Step-by-step solution:**
- Add the two equations to eliminate $y$:
$$ (x + y) + (x - y) = 6 + 2 $$
$$ 2x = 8 $$
- Solve for $x$:
$$ x = \frac{8}{2} = 4 $$
- Substitute $x=4$ into the first equation:
$$ 4 + y = 6 $$
- Solve for $y$:
$$ y = 6 - 4 = 2 $$
4. **Answer:** The solution to the system is
$$ (x, y) = (4, 2) $$
This means the two lines intersect at the point $(4, 2)$.
Linear System 9D2076
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