若方程组2X+3Y=7K 3X-3Y=3k的解x Y的和为6,则K的值为()若X与Y互为相反数,且2X - 3Y等于五,则X加3Y的平方等于()据研究,地球上空H (M)处的气温T℃与地球气温T摄氏度有如下关系:T=T-KH,先用气
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![若方程组2X+3Y=7K 3X-3Y=3k的解x Y的和为6,则K的值为()若X与Y互为相反数,且2X - 3Y等于五,则X加3Y的平方等于()据研究,地球上空H (M)处的气温T℃与地球气温T摄氏度有如下关系:T=T-KH,先用气](/uploads/image/z/1340890-34-0.jpg?t=%E8%8B%A5%E6%96%B9%E7%A8%8B%E7%BB%842X%2B3Y%3D7K+3X-3Y%3D3k%E7%9A%84%E8%A7%A3x+Y%E7%9A%84%E5%92%8C%E4%B8%BA6%2C%E5%88%99K%E7%9A%84%E5%80%BC%E4%B8%BA%EF%BC%88%EF%BC%89%E8%8B%A5X%E4%B8%8EY%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E4%B8%942X+-+3Y%E7%AD%89%E4%BA%8E%E4%BA%94%2C%E5%88%99X%E5%8A%A03Y%E7%9A%84%E5%B9%B3%E6%96%B9%E7%AD%89%E4%BA%8E%EF%BC%88%EF%BC%89%E6%8D%AE%E7%A0%94%E7%A9%B6%2C%E5%9C%B0%E7%90%83%E4%B8%8A%E7%A9%BAH+%EF%BC%88M%EF%BC%89%E5%A4%84%E7%9A%84%E6%B0%94%E6%B8%A9T%E2%84%83%E4%B8%8E%E5%9C%B0%E7%90%83%E6%B0%94%E6%B8%A9T%E6%91%84%E6%B0%8F%E5%BA%A6%E6%9C%89%E5%A6%82%E4%B8%8B%E5%85%B3%E7%B3%BB%EF%BC%9AT%3DT-KH%2C%E5%85%88%E7%94%A8%E6%B0%94)
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