Problem

Determine if $(3,-6,7)$ is a solution of the system.
\[
\begin{array}{c}
x+y+z=4 \\
x-2 y-z=8 \\
2 x-y-2 z=-2
\end{array}
\]
Choose the correct answer below.
The ordered triple is not a solution to the system.
The ordered triple is a solution to the system.

Answer

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Answer

Final Answer: The ordered triple $(3,-6,7)$ is a \(\boxed{\text{solution to the system}}\).

Steps

Step 1 :Substitute the values of the ordered triple $(3,-6,7)$ into the system of equations.

Step 2 :For the first equation, we have $3 + (-6) + 7 = 4$, which is true.

Step 3 :For the second equation, we have $3 - 2*(-6) - 7 = 8$, which is also true.

Step 4 :For the third equation, we have $2*3 - (-6) - 2*7 = -2$, which is true.

Step 5 :Since the left-hand side equals the right-hand side for all three equations, the ordered triple is a solution to the system.

Step 6 :Final Answer: The ordered triple $(3,-6,7)$ is a \(\boxed{\text{solution to the system}}\).

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