Question

初一解方程组

x+y/2=2x-y/3=x+2 要过程

Answer 1

x+y/2=2x-y/3可以得出x=5y/6
2x-y/3=x+2可以得出x=2+y/3
所以2+y/3=5y/6
解得y=4 代入原题x=10/3

Answer 2

x+y/2=2x-y/3 得
x=5y/6 ·······1
2x-y/3=x+2 得
x=2+y/3 ········2
由1和2 解得y=4
x=10/3