2x + 1 - 2x = 32
=> 2x . 2 - 2x = 32
=> 2x . (2 - 1) = 32
=> 2x . 1 = 32
=> 2x = 32
=> 2x = 25
=> x = 5
Vậy x = 5.
~Std well~
#Mina
Đề bài là : 2x + 1 - 2x = 32 à ???
=> 2x . 2 - 2x = 32
=> 2x . ( 2 - 1 ) = 32
=> 2x . 1 = 32
=> 2x = 32
=> 2x = 25
=> x = 5