解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,

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解下面方程组,x+y/3+x-y/2=63(x+y)-2(x-y)=28,解下面方程组,x+y/3+x-y/2=63(x+y)-2(x-y)=28,解下面方程组,x+y/3+x-y/2=63(x+y)

解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,
解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,

解下面方程组,x+y/3+x-y/2=6 3(x+y)-2(x-y)=28,
x+y/3+x-y/2=6为①式 3(x+y)-2(x-y)=28为②式
将①乘以6得6x+2y=6x-3y=36化简得12x-y=36
化简②得x+5y=28 得x=28-5y 带入上式
则12(28-5y)-y=36 y=300/61 x=208/61

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