1. **State the problem:** We are given the system of equations:
$$\begin{cases} x + 3y = 10 \\ -2x - 2y = 4 \end{cases}$$
We need to find which of the given systems has the same solution as this system.
2. **Solve the original system:**
From the first equation:
$$x = 10 - 3y$$
Substitute into the second equation:
$$-2(10 - 3y) - 2y = 4$$
Simplify:
$$-20 + 6y - 2y = 4$$
$$4y - 20 = 4$$
Add 20 to both sides:
$$4y = 24$$
Divide both sides by 4:
$$\cancel{4}y = \cancel{4}6$$
$$y = 6$$
Substitute back to find $x$:
$$x = 10 - 3(6) = 10 - 18 = -8$$
So the solution is:
$$(x, y) = (-8, 6)$$
3. **Check each system to see if it has the same solution:**
**Option 1:**
$$\begin{cases} -x + y = 6 \\ 2x + 6y = 20 \end{cases}$$
Substitute $x = -8$, $y = 6$:
$$-(-8) + 6 = 8 + 6 = 14 \neq 6$$
So option 1 does not have the same solution.
**Option 2:**
$$\begin{cases} -x + y = 14 \\ 2x + 6y = 20 \end{cases}$$
Substitute $x = -8$, $y = 6$:
$$-(-8) + 6 = 8 + 6 = 14$$
$$2(-8) + 6(6) = -16 + 36 = 20$$
Both equations are satisfied, so option 2 has the same solution.
**Option 3:**
$$\begin{cases} x + y = 6 \\ 2x + 6y = 20 \end{cases}$$
Substitute $x = -8$, $y = 6$:
$$-8 + 6 = -2 \neq 6$$
So option 3 does not have the same solution.
**Option 4:**
$$x + y = 14$$
Substitute $x = -8$, $y = 6$:
$$-8 + 6 = -2 \neq 14$$
So option 4 does not have the same solution.
**Final answer:** Option 2 has the same solution as the original system.
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