解方程组3x+2+5z=2,x-2y-z=6,4x+2y-7z=30
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解方程组3x+2+5z=2,x-2y-z=6,4x+2y-7z=30
解方程组3x+2+5z=2,x-2y-z=6,4x+2y-7z=30
解方程组3x+2+5z=2,x-2y-z=6,4x+2y-7z=30
谢谢
x=4
y=0
z=-2
你带进去看看对不对
3x+2y+5z=2,x-2y-z=6,4x+2y-7z=30
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