x + 16 - 12 = 52
x + 16 = 52 + 12
x + 16 = 64
x = 64 - 16
x = 48
x + 16 - 12 = 52
x + 16 = 52 + 12
x + 16 = 64
x = 64 - 16
x = 48
Vậy : 48 + 16 - 12 = 52
x + 16 - 12 = 52
x = 52 + 12 - 16
x = 64 - 16
x = 48
x + 16 - 12 = 52
x + 16 = 52 + 12
x + 16 = 64
x = 64 - 16
x = 48
x + 16 - 12 = 52
x + 16 = 52 + 12
x + 16 = 64
x = 64 - 16
x = 48
Vậy x = 48
x+16-12=52
=>x+16=52+12
=>x+16=64
=>x=64-16
=>x=48
x + 16 - 12 = 52
x + 16 = 52 + 12
x + 16 = 64
x = 64 - 16
x = 48
x+16-12=52
=>x+16=52+12=64
=>x=64-16=48
x+16-12=52
x+16 =52-12
x+16 =40
x+16 =40-16
x =24