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Solve the System {x+y+z=7xy+5z=34x+y+z=22\left\{ \begin{aligned}x + y + z & = 7 \\x - y + 5 z & = - 3 \\4 x + y + z & = 22\end{aligned} \right.

Question 55

Multiple Choice

Solve the system.
- {x+y+z=7xy+5z=34x+y+z=22\left\{ \begin{aligned}x + y + z & = 7 \\x - y + 5 z & = - 3 \\4 x + y + z & = 22\end{aligned} \right.


A) (5,3,1) ( 5,3 , - 1 )
B) (1,3,5) ( - 1,3,5 )
C) (1,5,3) ( - 1,5,3 )
D) \varnothing

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