(0.8x+0.9)÷0.5=(x+5)÷2+(0.3x-0.2)÷0.3_数学解答

(0.8x+0.9)÷0.5=(x+5)÷2+(0.3x-0.2)÷0.3

人气：472 ℃　时间：2020-03-29 20:31:29

解答

(0.8x+0.9)÷0.5=(x+5)÷2+(0.3x-0.2)÷0.3
1.6X+1.8=0.5X+2.5+X-2/3
4.8X+5.4=1.5X+7.5+3X-2
0.3X=0.1
X=1/3