直线ax+2y-6=0与x+(a-1)y-(a-1)=0平行,则点P(-1,0)到直线ax+2y-6=0的距离等于?

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直线ax+2y-6=0与x+(a-1)y-(a-1)=0平行,则点P(-1,0)到直线ax+2y-6=0的距离等于?

直线ax+2y-6=0与x+(a-1)y-(a-1)=0平行,则点P(-1,0)到直线ax+2y-6=0的距离等于?
直线ax+2y-6=0与x+(a-1)y-(a-1)=0平行,则点P(-1,0)到直线ax+2y-6=0的距离等于?

直线ax+2y-6=0与x+(a-1)y-(a-1)=0平行,则点P(-1,0)到直线ax+2y-6=0的距离等于?