解三元一次方程组 1.{2x-y+z=1,3x+y-2z=2,x+2y-z=3 2.{3x-y+z=4,2x+3y-z=12,x+y+z=63.{3x-y+z=4,2x+3y-z=12,x+y+z=6 4.{a+b+c=12,2a+b-c=3,a-b+c=25.{x-4y+z=-3,2x+y-z=18,x-y-z=7 6.{4x+3y+2y=7,6x-4y-z=6,2x-y+z=17,{x+y+2z=6,y-x+z=1,x+2y=0 问题有点多
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![解三元一次方程组 1.{2x-y+z=1,3x+y-2z=2,x+2y-z=3 2.{3x-y+z=4,2x+3y-z=12,x+y+z=63.{3x-y+z=4,2x+3y-z=12,x+y+z=6 4.{a+b+c=12,2a+b-c=3,a-b+c=25.{x-4y+z=-3,2x+y-z=18,x-y-z=7 6.{4x+3y+2y=7,6x-4y-z=6,2x-y+z=17,{x+y+2z=6,y-x+z=1,x+2y=0 问题有点多](/uploads/image/z/380068-52-8.jpg?t=%E8%A7%A3%E4%B8%89%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84+1.%7B2x-y%2Bz%3D1%2C3x%2By-2z%3D2%2Cx%2B2y-z%3D3+2.%7B3x-y%2Bz%3D4%2C2x%2B3y-z%3D12%2Cx%2By%2Bz%3D63.%7B3x-y%2Bz%3D4%2C2x%2B3y-z%3D12%2Cx%2By%2Bz%3D6+4.%7Ba%2Bb%2Bc%3D12%2C2a%2Bb-c%3D3%2Ca-b%2Bc%3D25.%7Bx-4y%2Bz%3D-3%2C2x%2By-z%3D18%2Cx-y-z%3D7+6.%7B4x%2B3y%2B2y%3D7%2C6x-4y-z%3D6%2C2x-y%2Bz%3D17%2C%7Bx%2By%2B2z%3D6%2Cy-x%2Bz%3D1%2Cx%2B2y%3D0+%E9%97%AE%E9%A2%98%E6%9C%89%E7%82%B9%E5%A4%9A)
解三元一次方程组 1.{2x-y+z=1,3x+y-2z=2,x+2y-z=3 2.{3x-y+z=4,2x+3y-z=12,x+y+z=63.{3x-y+z=4,2x+3y-z=12,x+y+z=6 4.{a+b+c=12,2a+b-c=3,a-b+c=25.{x-4y+z=-3,2x+y-z=18,x-y-z=7 6.{4x+3y+2y=7,6x-4y-z=6,2x-y+z=17,{x+y+2z=6,y-x+z=1,x+2y=0 问题有点多
解三元一次方程组 1.{2x-y+z=1,3x+y-2z=2,x+2y-z=3 2.{3x-y+z=4,2x+3y-z=12,x+y+z=6
3.{3x-y+z=4,2x+3y-z=12,x+y+z=6 4.{a+b+c=12,2a+b-c=3,a-b+c=2
5.{x-4y+z=-3,2x+y-z=18,x-y-z=7 6.{4x+3y+2y=7,6x-4y-z=6,2x-y+z=1
7,{x+y+2z=6,y-x+z=1,x+2y=0 问题有点多请多多包涵,
解三元一次方程组 1.{2x-y+z=1,3x+y-2z=2,x+2y-z=3 2.{3x-y+z=4,2x+3y-z=12,x+y+z=63.{3x-y+z=4,2x+3y-z=12,x+y+z=6 4.{a+b+c=12,2a+b-c=3,a-b+c=25.{x-4y+z=-3,2x+y-z=18,x-y-z=7 6.{4x+3y+2y=7,6x-4y-z=6,2x-y+z=17,{x+y+2z=6,y-x+z=1,x+2y=0 问题有点多
解的格式(x y z)
3.(2 3 1) 4.(5/3 5 16/3)
5.(7 2 -2) 6.(7/6 7/15 -13/15)
7.(8/7 -4/7 19/7)