Question

解方程:1.8x-x=2.42.4x-0.5×2=0.3x:2分之1=5分之3:5分之923.5-4x=14.52x+3

Answer 1

1:0.8x=2.4

x=3

2:2.4x=1.3

x=13/24

3:???

4:-4x=23.5-14.5

x=-9/4

5:2x=8.9

x=44.5

6:2x=7.5/15

x=1/2