Question

giúp với ạ

Answer 1

e/

`3x -25 =11`

`=> 3x =25+11`

`=> 3x = 36`

`=> x =36/3 =12`

Vậy `x =12`

f/

`87 -2x =33`

`=> 2x = 87 -33`

`=> 2x = 54`

`=> x =27`

Vậy `x =27`

Answer 2

e)

3x - 25 = 11

3x = 11 + 25

3x = 36

x = 36 : 3

x = 12

f)

87 - 2x = 33

2x = 87 - 33

2x = 54

x = 54 : 2

x = 27