Solve the System of Equations A) $( 1,4,2 )$ B) $( 1,2,4 )$

question 58

Multiple Choice

Solve the system of equations.
- $$\begin{array} { l } x _ { 1 } + x _ { 2 } + x _ { 3 } = 7 \\x _ { 1 } - x _ { 2 } + 2 x _ { 3 } = 7 \\5 x _ { 1 } + x _ { 2 } + x _ { 3 } = 11\end{array}$$

• A) \(( 1,4,2 )\)
• B) \(( 1,2,4 )\)
• C) \(( 4,1,2 )\)
• D) \(( 4,2,1 )\)

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