2x1 3x2-x3 5x4=03x x, 2x,-7x,=04x1 x2-3x3 6x4=0x1-2x2 4x3-7x4=0
2x1 3x2-x3 5x4=03x x, 2x,-7x,=04x1 x2-3x3 6x4=0x1-2x2 4x3-7x4=0
发布时间:2025-06-26 19:49:40
2x1 3x2-x3 5x4=03x x, 2x,-7x,=04x1 x2-3x3 6x4=0x1-2x2 4x3-7x4=0