解下列方程组:(1),1/3x+2(5/6x+1)=8+x; (2),{2x-y=5,7x-3y=20.
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解下列方程组:(1),1/3x+2(5/6x+1)=8+x; (2),{2x-y=5,7x-3y=20.
解下列方程组:(1),1/3x+2(5/6x+1)=8+x; (2),{2x-y=5,7x-3y=20.
解下列方程组:(1),1/3x+2(5/6x+1)=8+x; (2),{2x-y=5,7x-3y=20.