Question

[Hatsune Miku]

X + 50 = 100 - 40

Ai tk minh minh tk lai

Answer 1

[tôi không quan tâm]

 X + 50 = 60

   X = 60 - 50

   X= 10

Answer 2

[Hatsune Miku]

X + 50 = 100 - 40

X + 50 = 60

X         = 60 - 50

X         = 10

ai tk mik mik tk lai , mik hua !!