Multiple choice question III — task. Mathematics State Board, Class 10.

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\((2,1)\) is the point of intersection of two lines.

\(x + 3y - 3 = 0; x - y - 7 = 0\)
\(x - y - 3 = 0; 3x + y = 7\)
\(3x + y = 3; x + y = 7\)
\(x + y = 3; 3x + y = 7\)

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