1. **State the problem:** Solve the system of linear equations:
$$\begin{cases} x + y + z = 3 \\ 13x + 2z = 2 \\ -x - 5z = -5 \end{cases}$$
2. **Use substitution or elimination:** We have three equations with three variables $x$, $y$, and $z$. Our goal is to find values for $x$, $y$, and $z$ that satisfy all equations simultaneously.
3. **From the third equation:**
$$-x - 5z = -5 \implies x + 5z = 5 \implies x = 5 - 5z$$
4. **Substitute $x$ into the second equation:**
$$13x + 2z = 2 \implies 13(5 - 5z) + 2z = 2$$
$$65 - 65z + 2z = 2$$
$$65 - 63z = 2$$
$$-63z = 2 - 65 = -63$$
$$z = \frac{-63}{-63} = 1$$
5. **Find $x$ using $z=1$:**
$$x = 5 - 5(1) = 5 - 5 = 0$$
6. **Find $y$ using the first equation:**
$$x + y + z = 3 \implies 0 + y + 1 = 3 \implies y = 3 - 1 = 2$$
7. **Final solution:**
$$\boxed{(x, y, z) = (0, 2, 1)}$$
This solution satisfies all three equations.
Linear System 279De5
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