Question

[Hằng Xuka]

Timf x

i) ( 12- 3x ) : 20 = 0

k) ( 2x - 86 ) : 9999 = 0

l) 83 : ( 5x + 28 ) = 1

m) 98 : ( 72 - x ) = 98

Làm đùm mình nha.

Answer 1

[Ran Mori]

i)x=4

k)x=43

l)x=11

m)x=71

tk mk nha bạn

Answer 2

[Le Thi Khanh Huyen]

i) ( 12- 3x ) : 20 = 0

=> 12 - 3x = 0

3x = 12

x=12 : 3 =3

k) ( 2x - 86 ) : 9999 = 0

=> 2x - 86 = 0

=> 2x = 86

=> x = 86 : 2 = 43

l) 83 : ( 5x + 28 ) = 1

5x + 28 = 83 : 1 = 83

5x = 83 - 28

5x =55

x=55 : 5 = 11

m) 98 : ( 72 - x ) = 98

72-x = 98 : 98

72 - x = 1

x = 72 - 1 = 71