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解方程组:\(\left\{ {\begin{array}{*{20}{l}} {y = 2x - 5} \\ {5x + 2y = 8} \end{array}} \right.\)
参考答案:\(\left\{ {\begin{array}{*{20}{l}} {x = 2} \\ {y = - 1} \end{array}} \right.\)
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