x + 78 - 12 x 7= 987
x + 78 - 84 = 987
x + 78 = 987 + 84
x + 78 = 1071
x = 1071 - 78
x = 993
Kb nhaAikatsu Ichigo
x=993
k cho mình nha mình cũng kết bạn rồi
X+78-12*7=987
X+78 =987+{12*7}
X+78 =987+84
X+78 =1071
X =1071-78
X =993
x + 78 - 12 x 7 = 987
x + 78 - 84 = 987
x + 78 = 987 + 84
x + 78 = 1071
x = 1071 - 78
x = 993
^^ Ủng hộ nha!
x+78-12x7=987
x+78-84=987
x+78=987+84
x+78=1071
x =1071-78
x =993
x+78-12x7=987
x+78-84=987
x-6=987
x=987+6
x=993
bn hok tốt
x + 78 - 12 x 7 = 987
x + 78 - 84 = 987
x + 78 = 987 + 84
x + 78 = 1071
x = 1071 - 78
x = 993
X + 78 - 12 x 7 = 987
X + 78 - 12 =987:7
X + 78 - 12 =141
X + 78 =141+12
X + 78 =153
X =153-78
X = 75