解二元一次方程与一元一次方程1.3x+y=1 2x+3y=-4 2.3x-5y=1 4-x=2y 3.5x-4y=3 y=3x-2 4.2x-2y=4 x=3y+2 5.x=2y+7 3x-4y=c 6.y=x+3 3x+2y 7.x+y=5 y=2x-8 8.2x-y=4 x=2y-1 9.x+y=3 2x-3y=4 10.3x+2y=5 x-2y=4 11.4x-2=2x+8 12.2x=5x-3 13.2\3x-2=2x+4\3 14
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![解二元一次方程与一元一次方程1.3x+y=1 2x+3y=-4 2.3x-5y=1 4-x=2y 3.5x-4y=3 y=3x-2 4.2x-2y=4 x=3y+2 5.x=2y+7 3x-4y=c 6.y=x+3 3x+2y 7.x+y=5 y=2x-8 8.2x-y=4 x=2y-1 9.x+y=3 2x-3y=4 10.3x+2y=5 x-2y=4 11.4x-2=2x+8 12.2x=5x-3 13.2\3x-2=2x+4\3 14](/uploads/image/z/1545105-57-5.jpg?t=%E8%A7%A3%E4%BA%8C%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E4%B8%8E%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B1.3x%2By%3D1+2x%2B3y%3D-4+2.3x-5y%3D1+4-x%3D2y+3.5x-4y%3D3+y%3D3x-2+4.2x-2y%3D4+x%3D3y%2B2+5.x%3D2y%2B7+3x-4y%3Dc+6.y%3Dx%2B3+3x%2B2y+7.x%2By%3D5+y%3D2x-8+8.2x-y%3D4+x%3D2y-1+9.x%2By%3D3+2x-3y%3D4+10.3x%2B2y%3D5+x-2y%3D4+11.4x-2%3D2x%2B8+12.2x%3D5x-3+13.2%5C3x-2%3D2x%2B4%5C3+14)
解二元一次方程与一元一次方程1.3x+y=1 2x+3y=-4 2.3x-5y=1 4-x=2y 3.5x-4y=3 y=3x-2 4.2x-2y=4 x=3y+2 5.x=2y+7 3x-4y=c 6.y=x+3 3x+2y 7.x+y=5 y=2x-8 8.2x-y=4 x=2y-1 9.x+y=3 2x-3y=4 10.3x+2y=5 x-2y=4 11.4x-2=2x+8 12.2x=5x-3 13.2\3x-2=2x+4\3 14
解二元一次方程与一元一次方程
1.3x+y=1 2x+3y=-4 2.3x-5y=1 4-x=2y 3.5x-4y=3 y=3x-2 4.2x-2y=4 x=3y+2 5.x=2y+7 3x-4y=c 6.y=x+3 3x+2y 7.x+y=5 y=2x-8 8.2x-y=4 x=2y-1 9.x+y=3 2x-3y=4 10.3x+2y=5 x-2y=4 11.4x-2=2x+8 12.2x=5x-3 13.2\3x-2=2x+4\3 14.2(x-2)-3(x-1)=5 15.2(x+3)-3(x-1)=5(1-x) 16.x+3\3 - X+1\2=1 紧急,
解二元一次方程与一元一次方程1.3x+y=1 2x+3y=-4 2.3x-5y=1 4-x=2y 3.5x-4y=3 y=3x-2 4.2x-2y=4 x=3y+2 5.x=2y+7 3x-4y=c 6.y=x+3 3x+2y 7.x+y=5 y=2x-8 8.2x-y=4 x=2y-1 9.x+y=3 2x-3y=4 10.3x+2y=5 x-2y=4 11.4x-2=2x+8 12.2x=5x-3 13.2\3x-2=2x+4\3 14
1 x=-1/11 y=14/11 2 x=2 y=1