2x-3y=0(1),x=3-2y(2) 3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)这不是一道题额2x-3y=0(1),x=3-2y(2)3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 17:00:16
![2x-3y=0(1),x=3-2y(2) 3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)这不是一道题额2x-3y=0(1),x=3-2y(2)3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)](/uploads/image/z/402162-42-2.jpg?t=2x-3y%3D0%281%29%2Cx%3D3-2y%282%29+3x%2B5y%3D8%281%29%2C2x-y%3D1%282%29+x-4y%3D-1%281%29%2C2x%2By%3D16%282%29+x%2F2%3Dy%2F3%281%29%2C3x%2B4y%3D9%282%29%E8%BF%99%E4%B8%8D%E6%98%AF%E4%B8%80%E9%81%93%E9%A2%98%E9%A2%9D2x-3y%3D0%281%29%2Cx%3D3-2y%282%293x%2B5y%3D8%281%29%2C2x-y%3D1%282%29+x-4y%3D-1%281%29%2C2x%2By%3D16%282%29+x%2F2%3Dy%2F3%281%29%2C3x%2B4y%3D9%282%29)
2x-3y=0(1),x=3-2y(2) 3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)这不是一道题额2x-3y=0(1),x=3-2y(2)3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)
2x-3y=0(1),x=3-2y(2) 3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)
这不是一道题额
2x-3y=0(1),x=3-2y(2)
3x+5y=8(1),2x-y=1(2)
x-4y=-1(1),2x+y=16(2)
x/2=y/3(1),3x+4y=9(2)
2x-3y=0(1),x=3-2y(2) 3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)这不是一道题额2x-3y=0(1),x=3-2y(2)3x+5y=8(1),2x-y=1(2) x-4y=-1(1),2x+y=16(2) x/2=y/3(1),3x+4y=9(2)
2x-3y=0(1),x=3-2y(2)
2(3-2y)-3y=0
6-4y-3y=0
7y=6
y=6/7
x=9/7
3x+5y=8(1),2x-y=1(2)
(1)+(2)*5
3x+5y+10x-5y=8+5
13x=13
x=1
y=1
x-4y=-1(1),2x+y=16(2)
(1)+(2)*4
x-4y+8x+4y=-1+64
9x=63
x=7
y=2
x/2=y/3(1),3x+4y=9(2)
由(1)得3x=2y
2y+4y=9
y=3/2
x=1