Question

tìm x

x-105:21=15

Answer 1

quên khi nãy nhìn lộn:

x-105:21=15

=>x-15 =105:21

=>x-15=5

=>x=15+5

=>x=20

Answer 2

x-105:21=15

        x-5=15

           x=15+5

           x=20

Answer 3

x-105:21=15

x-105=15.21

x-105=315

=>x=315+105

=>x=420

Answer 4

x-105:21=15

x-5=15

x=15+5

x=20

Answer 5

x - 105:21 = 15

x - 5 = 15

x= 20

Answer 6

\(x-105:21=15\Rightarrow x-5=15\)

\(\Rightarrow x=15+5\)

\(\Rightarrow x=20\)

Answer 7

x-105:21=15

x-5=15

x=15+5=20

Answer 8

x - 105 : 21 = 15

x - 5 = 15

x      = 15 + 5

x      = 20    

Answer 9

x-105:21=15

x-5=15

x=15+5

x=20

Answer 10

x - 105 : 21 = 15

           x - 5 = 15

                x = 15 + 5

                x = 20

Answer 11

X - 105 : 21 = 15

          X - 105 = 15 x 21

          X - 105 = 315

          X         = 420

Answer 12

x=20

Ủng hộ nha VŨ MINH HIẾU

Answer 13

X - 105 : 21 = 15

X    -     5     =15

X                 =15+5

X                 =20

Answer 14

x - 105 : 21 = 15

x - 105 = 15 x 21

x - 105 = 315

x = 315 + 105

x = 420

 Vậy x = 420 

Answer 15

x-105:21=15

=>x-5=15

=>x=15+5

=>x=20

tích cho nha Vũ Minh Hiếu

Answer 16

x - 105 : 21 = 15

x - 5 = 15

x = 15 + 5

x = 20

Answer 17

x - 105 : 21 = 15

x - 5 = 15

x = 15 + 5

x = 20

 Vậy x = 20