解方程3/2x+1-6/x+1＝2,去分母得4x+2-x+1＝12 所以3x＝9,x＝3 是对的还是错的_数学解答

解方程3/2x+1-6/x+1＝2,去分母得4x+2-x+1＝12 所以3x＝9,x＝3 是对的还是错的

人气：310 ℃　时间：2020-02-02 20:44:06

解答

根据你的意思题目应是 (2x+1) / 3 - (x + 1) / 6 = 2 ==> 2 * (2x +1) - (x +1) = 12 ==> 4x + 2 -x -1 = 12 ==> 3x = 11 ==> x = 11/3