方程组:4x-4y=32 x^2-y^2
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方程组:4x-4y=32 x^2-y^2
方程组:4x-4y=32 x^2-y^2
方程组:4x-4y=32 x^2-y^2
将4x-4y=32 化简成X=或Y=,然后代入x^2-y^2,X或Y会有两个解,然后代入4x-4y=32 验证就可以了.
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方程组4x+y=3 3x+2y=5,则x-y=
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一道二元一次方程组!3(x+y)-4(x-y)=4,(x+y)/2+(x-y)/6=1