( 12 - x ) x 9 = 72
( 12 - x ) = 72 : 9
( 12 - x ) = 8
x = 12 - 8
x = 4
( 12 - x ) x 9 = 72
( 12 - x ) = 72 : 9
( 12 - x ) = 8
x = 12 - 8
x = 4
Mik hứa sẽ tk lại ! Thanks !
(12 -x) =72:9
(12-x)=8
x=12-8
x=4
tk cho mình nha
( 12 - x ) x 9 = 72
12 - x =72 :9
12 - x = 8
x =12 - 8
x = 4
(12-x)x9=72
12-x =72:9
12-x =8
x =12-8
x =4