A = 48 + ( - 48 + 174 ) + / -74/
A = 48 - 48 - 174 + 74
A = 0 - 174 +74
A = - 100
A=48+|48-174|+(-74)
A=48+|-126|-74
A=48+126-74
A=174-74
A= 100
A = 48 + ( - 48 - 174 ) + | - 74 |
= 48 + ( - 48) - 174 + 74
= 0 - 174 + 74
= - 174 + 74
= -100
:( Học tốt nha!!!!