已知俩直线L1:Ax-By+4=0和L2:(A-1)x+y+B=0.若L1//L2.且坐标原点到俩直线的距离相等..求A,B的植

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已知俩直线L1:Ax-By+4=0和L2:(A-1)x+y+B=0.若L1//L2.且坐标原点到俩直线的距离相等..求A,B的植