Question

Answer 1

Uaa cái này mình giải rồi mà c oii ;-;;.

https://hoc24.vn/cau-hoi/.8090552870309

Answer 2

a: =>2/3-4x=1/10

=>4x=17/30

=>x=17/120

b: =>2/3:x=-5/4-1/2=-7/4

=>x=-2/3:7/4=-2/3*4/7=-8/21

c: =>0,75x/0.75=0,01/2,5=1/250

=>x=1/250

d: =>3,8:2x=3/32

=>2x=608/15

=>x=304/15

e: =>16/9:[(1-x)*3/2+1/4*4/5]=5/9

=>(1-x)*3/2+1/5=16/9:5/9=16/5

=>(1-x)*3/2=3

=>1-x=3:3/2=2

=>x=-1