1、.2x7z10,y2x7,2x7z10,y2x7,1. 9 y4z18,2. 5x3y2z2,1. 9y4z18,2. 5x3y2z 2,11x8z47;3x4z4;11x8z47;3x4z4;24x79zy1210,3yx2yx77,4x9 y12,3xy7,13. 93y42z1,8,42.y5x43zy32,z2x7z10,y2x7,2,3. 3y2z1,4.y4z3,2,11x8z473;23x24z4;5.1. 9y4z18,2. 5x3y2z7x5z43;2x2z5.7x5z4;3x4z4;411x8z47;44x9y12,3xy7,4x9 y12,3xy7,3. 3y2z1,4.
2、y4z3,3. 3y2z1,4.y4z3,32x2z5.7x5z;32x2z5.47x5z4;44xy12,4x9z17,1. xyz10,2. 3xy15z18,xyz15;x2y3z2.11x3z9,xyz26,2x2 yz8,xy1,2x6y4z5.2xzy18.x y z 6x y 3x 3y 2z 1y z 53x 2y z 4x z6;.x 3y z 1x 2y 3z 262x y z 32x 3y z 343x y 2z 53x 2y z 39y2z 12x 3y 4z 33x 2z 5xy z 11y z x 5z xy 1x y 8yz 6x z4;.x+y=32x+4x+3z=92x-y+z=43x-2y+5z=11x-y+2x=35x-6y+7z=132x+3y+z=38x-y-z=43x+4y+2z=562x+3y+z=14x+5y+z=664x+2y-3z=54x-9z=172x+4y+3z=93x+y+15z=183x-2y+5z=11x+2y+3z=25x-6y+7z=133x+4z=72x+y-z=22x+3y+z=9x+2y-z=55x-9y+7z=8x-y+2z=-7;.
