3(X-1)+2(Y+1)=8 2(X-1)-3Y=1的解
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3(X-1)+2(Y+1)=8 2(X-1)-3Y=1的解
![3(X-1)+2(Y+1)=8 2(X-1)-3Y=1的解](/uploads/image/z/19451427-51-7.jpg?t=3%28X-1%29%2B2%28Y%2B1%29%3D8+2%28X-1%29-3Y%3D1%E7%9A%84%E8%A7%A3)
3(X-1)+2(Y+1)=8
3X-3+2Y+2=8
3X+2Y=9 (1)
2(X-1)-3Y=1
2X-2-3Y=1
2X-3Y=3 (2)
(1)×3+(2)×2
9X+4X=27+6
13X=33
所以
X=33/13
Y=(9-3X)/2=9/13
3X-3+2Y+2=8
3X+2Y=9 (1)
2(X-1)-3Y=1
2X-2-3Y=1
2X-3Y=3 (2)
(1)×3+(2)×2
9X+4X=27+6
13X=33
所以
X=33/13
Y=(9-3X)/2=9/13
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