已知直线\({l_1}:x + my + 6 = 0\)，\({l_2}:(m - 2)x + 3y + 2m = 0\).若\({l}

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已知直线\({l_1}:x + my + 6 = 0\)，\({l_2}:(m - 2)x + 3y + 2m = 0\).若\({l}_{1}\parallel {l}_{2}\)，求\(m\)的值.

参考答案：\(m = - 1\)