解：方程 m/(x - 2) + 3 = (1 – x)/(2 - x)有增根，说明增根为x = 2 => (m + 1 - x)/(2 - x) = 3 => (2x + m - 5)/(2 - x) = 0 => x = (5 - m)/2 => m = 1 时原方程有增根x = 2 。记得采纳啊
