1、若|3x+2y-4|+|3y-2x+5|=0,求x、y的值 2、若(x-3y+6)²+|4x-2y-3|=0,求x、y的值(||是绝对值)
1、若|3x+2y-4|+|3y-2x+5|=0,求x、y的值 2、若(x-3y+6)²+|4x-2y-3|=0,求x、y的值(||是绝对值)
数学人气:143 ℃时间:2019-08-19 07:05:49
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∵|3x+2y-4|+|3y-2x+5|=0,\∴3x+2y-4=0,3y-2x+5=0,∴3x+2y=4,①3y-2x=-5,②①﹢②得:6Y=-1,Y=-1/6∴X=13/9∵(x-3y+6)²+|4x-2y-3|=0,∴x-3y+6=0,4x-2y-3=0,∴x-3y =-6,4x-2y =3,∴x =-6+3y ,4﹙-6+3Y﹚-2y =...
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