解下列方程组:(1),x+y/3+x-y/2=6,3(x+y)-2(x-y)=28; (2解下列方程组:(1),x+y/3+x-y/2=6,3(x+y)-2(x-y)=28; (2),2x+4y+3z=9,3x-2y+5z=11,5x-6y+3z=1.

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解下列方程组:(1),x+y/3+x-y/2=6,3(x+y)-2(x-y)=28; (2
解下列方程组:(1),x+y/3+x-y/2=6,3(x+y)-2(x-y)=28;     (2),2x+4y+3z=9,3x-2y+5z=11,5x-6y+3z=1.

①+②×2,得8x+13z=31 ④ ②×3-③,得4x+8z=20 ⑤ ④-⑤×2,得-3z=-9,解得 z=3 代入⑤,解得x=-1 代入①,解得y=0.5