使用加减消元法解下列方程 ①{x:y=2:3 4x+6y=52 ②{x+1/2=y+2/3 2x-3y=4 ③{3x+5y=19 3x-5y=-1④{3m+2n=16 3m-n=1 ⑤{2x+3y=4 x-y=-3 ⑥{2X+3y=0 3x-y=11 满意另加重分
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![使用加减消元法解下列方程 ①{x:y=2:3 4x+6y=52 ②{x+1/2=y+2/3 2x-3y=4 ③{3x+5y=19 3x-5y=-1④{3m+2n=16 3m-n=1 ⑤{2x+3y=4 x-y=-3 ⑥{2X+3y=0 3x-y=11 满意另加重分](/uploads/image/z/47644-52-4.jpg?t=%E4%BD%BF%E7%94%A8%E5%8A%A0%E5%87%8F%E6%B6%88%E5%85%83%E6%B3%95%E8%A7%A3%E4%B8%8B%E5%88%97%E6%96%B9%E7%A8%8B+%E2%91%A0%7Bx%3Ay%3D2%3A3+4x%2B6y%3D52+%E2%91%A1%7Bx%2B1%2F2%3Dy%2B2%2F3+2x-3y%3D4+%E2%91%A2%7B3x%2B5y%3D19+3x-5y%3D-1%E2%91%A3%7B3m%2B2n%3D16+3m-n%3D1+%E2%91%A4%7B2x%2B3y%3D4+x-y%3D-3+%E2%91%A5%7B2X%2B3y%3D0+3x-y%3D11+%E6%BB%A1%E6%84%8F%E5%8F%A6%E5%8A%A0%E9%87%8D%E5%88%86)
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