x/2-y/3=3,x-3y-9=(y+5)/3
问题描述：
x/2-y/3=3,x-3y-9=(y+5)/3
求不要复制黏贴
答
3x - 2y = 18
3x - 9y - 27 = y + 5
3x - 10y = 32
8y = 14
y = 13/8
x = 85/12为什么我算的是
x=-47/2
y=-177/43x - 2y = 18
3x - 10y = 32
8y = -14
y = -7/4
x = 29 / 6