3a+2b=54,2a+3b=56,则a=(10),b=(12)请问这个a=10,b=12是怎么得出来的啊,顺便说下原因,越详细越好,也要算是!从来没碰到过这样的二元二次方的题目
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![3a+2b=54,2a+3b=56,则a=(10),b=(12)请问这个a=10,b=12是怎么得出来的啊,顺便说下原因,越详细越好,也要算是!从来没碰到过这样的二元二次方的题目](/uploads/image/z/135303-15-3.jpg?t=3a%2B2b%3D54%2C2a%2B3b%3D56%2C%E5%88%99a%3D%2810%29%2Cb%3D%2812%29%E8%AF%B7%E9%97%AE%E8%BF%99%E4%B8%AAa%3D10%2Cb%3D12%E6%98%AF%E6%80%8E%E4%B9%88%E5%BE%97%E5%87%BA%E6%9D%A5%E7%9A%84%E5%95%8A%2C%E9%A1%BA%E4%BE%BF%E8%AF%B4%E4%B8%8B%E5%8E%9F%E5%9B%A0%2C%E8%B6%8A%E8%AF%A6%E7%BB%86%E8%B6%8A%E5%A5%BD%2C%E4%B9%9F%E8%A6%81%E7%AE%97%E6%98%AF%21%E4%BB%8E%E6%9D%A5%E6%B2%A1%E7%A2%B0%E5%88%B0%E8%BF%87%E8%BF%99%E6%A0%B7%E7%9A%84%E4%BA%8C%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%9A%84%E9%A2%98%E7%9B%AE)
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