Two marks exercise problems VI — task. Mathematics State Board, Class 10.

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Find the values of

$x$ ,

$y$ and

$z$ from the following equations.

$(\begin{array}{l} x + y + z \\ x + z \\ y + z \end{array}) = (\begin{array}{l} 9 \\ 5 \\ 7 \end{array})$

$x = i; y = i; z = i$

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