(19 - 51) - (x - 23) = 6
-32 - (x - 23) = 6
x - 23 = -32 - 6
x - 23 = -38
x = -38 + 23
x = -15
( - 32 ) - ( x - 23 ) = 6
x - 23 = - 32 - 6
x - 23 = - 38
x = - 38 + 23
x = - 15
Vậy x = -15
( 19 - 51 ) - ( x - 23 ) = 6
( -32 ) - x + 23 = 6
( -32 ) - x = 6 - 23
( -32 ) - x = -17
x = ( -32 ) - ( -17 )
x = -15
(19-51)-(x-23)=6
-32 - x-23 = 6
x-23 = -32-6
x-23 = -38
x = -38 + 23
x = -15