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Answer: \((x, y) = (2, 4)\)

Write \(3x - y - 2 = 0\) as \(3x - y = 2\).

Ordered pairs for \(3x - y = 2\):

\(x\)\(0\)\(1\)\(2\)
\(y\)\(-2\)\(1\)\(4\)
\((x, y)\)\((0, -2)\)\((1, 1)\)\((2, 4)\)

Ordered pairs for \(2x + y = 8\):

\(x\)\(0\)\(4\)\(2\)
\(y\)\(8\)\(0\)\(4\)
\((x, y)\)\((0, 8)\)\((4, 0)\)\((2, 4)\)

Plot both sets of points on the same graph paper (scale: 1 cm = 1 unit on both axes) and join each set to get two straight lines. The lines intersect at \((2, 4)\).

Check: \(3(2) + (-1)(4) = 2\) and \(2(2) + 1(4) = 8\) – both true.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report
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