已知二元一次方程x-2y-6=0,当x与y互为相反数,求x,y的值
已知二元一次方程x-2y-6=0,当x与y互为相反数,求x,y的值
数学人气:787 ℃时间:2020-05-24 17:05:58
优质解答
由题意:Y=-X…代入原式…所以X=2 Y=-2
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