Solve the System of Equations Below Using Gaussian Elimination $$\begin{aligned}5 x + 4 y + 3 z & = 90 \\x - 2 y + 2 z & = 60 \\x - y - z & = - 30\end{aligned}$$

question 71

Multiple Choice

Solve the system of equations below using Gaussian elimination.
$$\begin{aligned}5 x + 4 y + 3 z & = 90 \\x - 2 y + 2 z & = 60 \\x - y - z & = - 30\end{aligned}$$

• A) \(( 1 , - 1,32 )\)
• B) \(( 1,0,31 )\)
• C) \(( 0,1,29 )\)
• D) \(( - 1,1,28 )\)
• E) \(( 0,0,30 )\)

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