1) 下式 x/2 + y/3 = 2
x/2 = 2 - y/3
x = 4- 2y/3..........(1)
上式 4(x--y-1)=3(1-y)-2
4x-4y-4=3-3y-2
=1-3y
4x-4=1+y.................(2)
将 (1) 代入(2) 4(4 - 2y/3)-4=1+y
16-8y/3-4=1+y
11=y+8y/3
y=3,x=2。
1) 下式 x/2 + y/3 = 2
x/2 = 2 - y/3
x = 4- 2y/3..........(1)
上式 4(x--y-1)=3(1-y)-2
4x-4y-4=3-3y-2
=1-3y
4x-4=1+y.................(2)
将 (1) 代入(2) 4(4 - 2y/3)-4=1+y
16-8y/3-4=1+y
11=y+8y/3
y=3,x=2。