6x+9y=216 6x-10y=14解方程组
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6x+9y=216 6x-10y=14解方程组
6x+9y=216 6x-10y=14解方程组
6x+9y=216 6x-10y=14解方程组
6x+9y=216 ①
6x-10y=14 ②
①-②,得
6x+9y-6x+10y=202
19y=202
y=202/19 ③
将③带入①,得
6x+9*(202/19)=216
求的:x=381/19
谁会解10x+y=6(x+y)+3 10y+x=4(x+y)+9
解方程组:{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10
6x+9y=216 6x-10y=14解方程组
(x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5
{6/x+y+10/x-y=30 6/x+y-10/x-y=-1
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
x,y 满足x(x-2)-y(y-6)=-10,求x,y的值
解方程组x+y/6+x-y/10=3,x+y/6+y-x/10=-1x+y/6+x-y/10=3 ①x+y/6+y-x/10=-1 ②
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610(x-y)=3(x+y)+156(x+y)=4(2x-y)+16
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