Question

tim x

|x-4/5|=3/4

6-|1/2-x|=2/5

|x+3/5|-1/2=1/2

làm giúp mình với

Answer 1

|x+3/5|-1/2=1/2

|x+3/5|=1/2+1/2

|x+3/5|=1

=>x+3/5=1

x=1-3/5

x=2/5

hay

x+3/5=-1

x=(-1)-3/5

x=-8/5

Vậy x=2/5 hay-8/5

 

Answer 2

1)vì |x-4/5|=3/4 =>x-4/5=3/4 hay x-4/5=-3/4 x=3/4+4/5 x= -3/4+4/5 x=31/20 x=1/20 vậy x=31/20 hay 1/20

Answer 3

6-|1/2-x|=2/5

|1/2-x|=6-2/5

|1/2-x|=28/5

=>1/2-x=28/5

x=1/2-28/5

x=-51/10

hay

1/2-x=-28/5

x=1/2-(-28/5)

x=61/10

vậy x=-51/10hay61/10