Final answer:
To solve the given system of equations algebraically, follow these steps: eliminate the y variable, find x and y values, and solve for z.
Step-by-step explanation:
To solve the given system of equations:
- Start by adding the second and third equations together to eliminate the y variable.
- Substitute the value of y into the first and third equations to eliminate the y variable again.
- Substitute the found values of x and y into any of the three equations to find the value of z.
Therefore, the solution to the system is x = -1, y = -2, and z = -2.
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