38 - 2 . ( 3x - 1 ) = 10
=> 6x - 2 = 28
=> 6x = 30
=> x = 5
Vậy x = 5
38-2.(3x-1)=10
2.(3x-1)=38-10
2.(3x-1)=28
3x-1=28:2
3x-1=14
3x=14+1
3x=15
x=15:3
x=5
vậy x=5
TL:
38 - 2 . ( 3x - 1 ) = 10
=> 6x - 2 = 28
=> 6x = 30
=> x = 5
Vậy x = 5
HT
38-2x(3x-1)=10
2x(3x-1)=32-10=22
(3x-1)=22:2=11
3x =11+1=12
x =12:3=4
Hok tốt!