x+2y/2 = 2x-y/3 = 1怎么算?_数学解答

x+2y/2 = 2x-y/3 = 1怎么算?

人气：277 ℃　时间：2020-05-22 00:09:37

解答

(x+2y)/2 =(2x-y)/3 = 1
x+2y=2①
2x-y=3②
②×2得4x-2y=6③
①+③得5x=8
x=8/5
把x=5/8代入②得y=1/5
所以x=8/5,y=1/5