.(x+0.4)乘6=5.4 1/3:3/20=7/9:π 3又1/5:π=1.8:5/8 知道的来啊.(x+0.4)乘6=5.4_数学解答

.(x+0.4)乘6=5.4 1/3:3/20=7/9:π 3又1/5:π=1.8:5/8 知道的来啊.
(x+0.4)乘6=5.4 .....1/3:3/20=7/9:π .....3又1/5:π=1.8:5/8

人气：356 ℃　时间：2020-03-29 07:29:08

解答

解(x+0.4)乘6=5.4得6x=3 x=1/2