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Solve the System x+y+z=−6x−y+5z=25x+y+z=−26\begin{array} { c } x + y + z = - 6 \\x - y + 5 z = 2 \\5 x + y + z = - 26\end{array}

Question 170

Multiple Choice

Solve the system.
x+y+z=−6x−y+5z=25x+y+z=−26\begin{array} { c } x + y + z = - 6 \\x - y + 5 z = 2 \\5 x + y + z = - 26\end{array}


A) {(1,−5,−2) }\{ ( 1 , - 5 , - 2 ) \}
B) {(−5,−2,1) }\{ ( - 5 , - 2,1 ) \}
C) ϕ\phi
D) {(1,−2,−5) }\{ ( 1 , - 2 , - 5 ) \}

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