Find the solution or solutions, if any exist, to the system.
A. infinitely many solutions of the form x = 
+ 
z, y = - 
+ 
z, z = z
B. infinitely many solutions of the form x = 
+ 
z, y = 
+ 
z, z = z
C. infinitely many solutions of the form x = 
- 
z, y = 
+ 
z, z = z
D. infinitely many solutions of the form x = 
- 
z, y = - 
+ 
z, z = z
Answer: C
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Solve the equation.
= 
A. 
B. 
C. 
D. 
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