解方程组X:y:z=3:2:1 2x+3y-Z=22
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解方程组X:y:z=3:2:12x+3y-Z=22解方程组X:y:z=3:2:12x+3y-Z=22解方程组X:y:z=3:2:12x+3y-Z=22设x=3k,y=2k,z=k.2*3k+3*2k-
解方程组X:y:z=3:2:1 2x+3y-Z=22
解方程组X:y:z=3:2:1 2x+3y-Z=22
解方程组X:y:z=3:2:1 2x+3y-Z=22
设x=3k,y=2k,z=k.
2*3k+3*2k-k=22
k=2
所以x=6,y=4,z=2
解方程组解方程组{y=2x-7{x+y+z=1{3x-z=4
解方程组 :X+Y-3Z=1 Y+Z-3X=2 Z+X-3Y=3
解方程组 x+y+z=2 x-2y+z=-1 x+2y+3z=-1
解方程组:x-2y+z=-1,x+y+z=2,x+2y+3z=-1
解方程组:x:y:z=1:2:3;x+y+z=12,求,x,y,z的值
解方程组{x:y:z=1:2:3 {2x+y-3z=15
解方程组X:y:z=3:2:1 2x+3y-Z=22
解方程组x:y:z=1:2:7 2x-y+3z=21
解方程组{X:y:z=1:2:7 {2X-y+3z=21
解二元一次方程组X:Y:Z=1:2:3,X+Y+Z=12
解方程组:x+y+z=15,x:y:z=3:2:1
方程组{①x:y:z=1:2:3 ②x+y+z=36 这个方程组怎么解
解方程组 x+y-z=6 〈1〉{x-3y+2z=1解方程组 x+y-z=6 〈1〉{x-3y+2z=1 3x+y-z=4
解方程组x+2y-z=1 ,3x-3y+z=2,2x+3y+z=7和方程组x+y=-14,y+z=-7,x+z=19
解三元一次方程组x-y=3解三元一次方程组x-y=3x+2y+z=82x-y-3z=1
解三元一次方程组x:y=2:1,2x-y=3z,x+y+z=20
matlab解对数方程组[x,y,z]=solve('0.29744*x/(3+0.1*x+y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)))^2','0.79*x/(3+0.1*y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.1*y+z)))^2','1.25*x/(3+0.1*z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.*1y+z)*(3+z)/
解方程组 z=x+y 2x-3y+2z=5 x+2y-z=3