解方程组.2x+3y/2=3x+2y/5+2 3(2x+3y)/2=2(3x+2y)+6..

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解方程组.2x+3y/2=3x+2y/5+2 3(2x+3y)/2=2(3x+2y)+6..

解方程组.2x+3y/2=3x+2y/5+2 3(2x+3y)/2=2(3x+2y)+6..
解方程组.2x+3y/2=3x+2y/5+2 3(2x+3y)/2=2(3x+2y)+6
..

解方程组.2x+3y/2=3x+2y/5+2 3(2x+3y)/2=2(3x+2y)+6..
2x+3y/2=3x+2y/5+2 ①
3(2x+3y)/2=2(3x+2y)+6 ②
①式化简得：10x-11y=-20 ③
②式化简得：6x-y=-12 ④
由④得：y=6x+12 ⑤
将⑤代入③得：10x-11（6x+12）=-20
x=-2
y=6x+12=-12+12=0
所以,原方程组的解为x=-2,y=0

2x+3y/2=3x+2y/5+2整理后为10x-11y+2=0.........A
3(2x+3y)/2=2(3x+2y)+6整理为6x-y+12=0...........B
B×11-A得：56x+112=0，x=-2
y=0

2x+3y/2=3x+2y/5+2
两边同乘以10
20x+15y=30x+4y+20
11y-10x-20=0...........(1)
3(2x+3y)/2=2(3x+2y)+6
3(2x+3y)=4(3x+2y)+12
6x+9y=12x+8y+12
y-6x-12=0.................(2)
由(1)(2)得
x=7， y=54

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