( 32 - 2 ) ( x - 12 ) + 35 = 52 + 279 : 32
( 32 - 2 ) ( x - 12 ) + 35 = 25 + 279 : 9
( 32 - 2 ) ( x - 12 ) + 35 = 56
32 - 2 ( x - 12 ) = 56 - 35
9 - 2 ( x - 12 ) = 21
2 ( x - 12 ) = 9 - 21
2 ( x - 12 ) = -12
x - 12 = - 12 : 2
x - 12 = - 6
x = - 6 + 12
x = 6
k nha
( 32 - 2 ) ( x - 12 ) + 35 = 52 + 279 : 32
( 32 - 2 ) ( x - 12 ) + 35 = 25 + 279 : 9
( 32 - 2 ) ( x - 12 ) + 35 = 56
32 - 2 ( x - 12 ) = 56 - 35
9 - 2 ( x - 12 ) = 21
2 ( x - 12 ) = 9 - 21
2 ( x - 12 ) = -12
x - 12 = - 12 : 2
x - 12 = - 6
x = - 6 + 12
x = 6
( 32 - 2 ) ( x - 12 ) + 35 = 52 + 279 : 32
( 32 - 2 ) ( x - 12 ) + 35 = 25 + 279 : 9
( 32 - 2 ) ( x - 12 ) + 35 = 56
32 - 2 ( x - 12 ) = 56 - 35
9 - 2 ( x - 12 ) = 21
2 ( x - 12 ) = 9 - 21
2 ( x - 12 ) = -12
x - 12 = - 12 : 2
x - 12 = - 6
x = - 6 + 12
x = 6
( 32 - 2 ) ( x - 12 ) + 35 = 52 + 279 : 32
( 32 - 2 ) ( x - 12 ) + 35 = 25 + 279 : 9
32 - 2 ( x - 12 ) = 56 - 35
9 - 2 ( x - 12 ) = 21
2 ( x - 12 ) = -12
x - 12 = - 12 : 2
x = - 6 + 12
x = 6
hok tốt