x/3+1=y 2(x+1)-y=6 用加减消元法算
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x/3+1=y2(x+1)-y=6用加减消元法算x/3+1=y2(x+1)-y=6用加减消元法算x/3+1=y2(x+1)-y=6用加减消元法算x/3+1=y(1)2(x+1)-y=6(2)(1)-(
x/3+1=y 2(x+1)-y=6 用加减消元法算
x/3+1=y 2(x+1)-y=6 用加减消元法算
x/3+1=y 2(x+1)-y=6 用加减消元法算
x/3+1=y (1)
2(x+1)-y=6 (2)
(1)-(2)
x/3+1-2(x+1)+y=y-6
x/3+1-2x-2=-6
5x/3=5
所以
x=3
y=x/3+1=2
2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
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