解方程组{x:y=3:4,y:z=4:5,x+y+z=36.
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解方程组{x:y=3:4,y:z=4:5,x+y+z=36.
![解方程组{x:y=3:4,y:z=4:5,x+y+z=36.](/uploads/image/z/17050486-22-6.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%E7%BB%84%7Bx%EF%BC%9Ay%3D3%EF%BC%9A4%2Cy%EF%BC%9Az%3D4%EF%BC%9A5%2Cx%2By%2Bz%3D36.)
x=3y/4
z=5y/4
3y/4+y+5y/4=36 y=12
x=9 z=15
z=5y/4
3y/4+y+5y/4=36 y=12
x=9 z=15
解方程组:x+y+z=4,x+y+2z=5,3x+y-z=6
解方程组x-y-3z=4 3x+y-z=6 -x+3y+z=8
解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6}
解方程组x-4y+z=-3,2x+y-z=18,x-y-z=7.
x+y/2=z+x/3+y=z/4,...x+y+z=27.解方程组.
已知方程组4x-5y+2z=0 x+2y=3z 则x:y:z
解三元一次方程组:x+y+z=6,y-z=4,x-y-2z=3,
方程组3x+4y+z=14 x+5y+2z=17 2x+2y-z=3 解方程组
x/2=y/3=z/4 x+y+z=18 求方程组解
解方程组{6x=4y=3z,2x+y+z=22
解方程组6x=4y=3z,x+y+z=18
解方程组:{x/2=y/3=z/4 2x+y+z=22