x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程 x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程

x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程 x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程
x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程
x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程

x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程 x+1/3-y+2/4=0 x-3/4-y-3/3=1/12 二元一次方程
x-3/-y-3/3=1/12 两边乘3x-3-y+3=1/4y=x-1/4 x+1/3-y+2/4=0 两边乘124（x+1）-3(y+2)=04x+4-3y-6=04x-3y=24x-3(x-1/4)=24x-3x+3/4=2x=2-3/4x=5/4y=x-1/4=5/4-1/4=1

去分母得：
4x-3y-2=0 ①
3x-4y+2=0 ②
①×3-②×4得
7y-14=0
y=2
将y=2代入①式得
x=2
∴原方程组的解为x=2
y=2
望采纳

你的方程是这样吗

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