If the system of equations: $x+y+z=5$ $x+2y+3z=9$ $x+3y+\lambda z=\mu$ has infinitely many solutions, then the value of $\lambda +\mu$ is: [JEE Main 2026, 4 Apr (Shift 2)]

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If the system of equations: \(x+y+z=5\) \(x+2y+3z=9\) \(x+3y+\lambda z=\mu\) has infinitely many solutions, then the val…

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