x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
k mk nha
Thanks nhìu ^_^
x - 19 - 20 = 36
x = 36 + 20
x = 56
x = 56 + 19
x = 75
Vậy x = 75
X - 19 - 20 = 36
X - 19 = 36 + 20
X - 19 = 56
X = 56 + 19
X = 75
x-19-20=36
x-19 =36+20
x-19 =56
x =56+19
x =75
x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
Vậy x = 75
x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
Vậy x = 75
x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
Vậy x = 75
x - 19 - 20 = 36
x - 19 = 36 + 20
x - 19 = 56
x = 56 + 19
x = 75
Vậy x = 75