2分之x+y+3分之x-y=6 2(2x+y)-3(x-y)=24 解方程解出来,

问题描述:

2分之x+y+3分之x-y=6 2(2x+y)-3(x-y)=24 解方程解出来,

x/2+y+x/3-y=6 ,5x/6=6,x=7.2
2(2x+y)-3(x-y)=24,
x+5y=24
5y=16.8
y=3.36

(x+y)/2+(x-y)/3=6.①
2(2x+y)-3(x-y)=24.②
①×6-②×5=6×6-24×5
y=3.5
x=6.5