已知直线y=-x+1和x,y轴分别交与点A,B以线段AB为边在第一象限内做一个等边三角形ABC,第一象限内有一点P(M,0.5),且S三角形ABP=S三角形ABC,求M.
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![已知直线y=-x+1和x,y轴分别交与点A,B以线段AB为边在第一象限内做一个等边三角形ABC,第一象限内有一点P(M,0.5),且S三角形ABP=S三角形ABC,求M.](/uploads/image/z/14901690-66-0.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFy%3D-x%2B1%E5%92%8Cx%2Cy%E8%BD%B4%E5%88%86%E5%88%AB%E4%BA%A4%E4%B8%8E%E7%82%B9A%2CB%E4%BB%A5%E7%BA%BF%E6%AE%B5AB%E4%B8%BA%E8%BE%B9%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%E5%86%85%E5%81%9A%E4%B8%80%E4%B8%AA%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2ABC%2C%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%E5%86%85%E6%9C%89%E4%B8%80%E7%82%B9P%28M%2C0.5%29%2C%E4%B8%94S%E4%B8%89%E8%A7%92%E5%BD%A2ABP%3DS%E4%B8%89%E8%A7%92%E5%BD%A2ABC%2C%E6%B1%82M.)
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