Question

x-12=23+34

Answer 1

x - 12 = 23 + 34

x - 12 = 57

       x = 57 + 12

       x = 69

ung ho mink nha Pham Thuy Linh

Answer 2

x - 12 = 23 + 34

x - 12 = 57

x       = 57 - 12 

x       = 45

Answer 3

x-12=23+34

x-12=57

x=57+12

x=69

Thử lại:69-12=23+34

=>57=57

Answer 4

x - 12 = 23 + 34

x - 12 = 57

x        = 57 + 12

x        = 69

Answer 5

x - 12 = 23 + 34

x - 12 = 57

x        = 57 + 12

x        = 69

Answer 6

x - 12 = 23 + 34

x  - 12 = 57

x         = 57 + 12

x         = 69

Answer 7

X - 12 = 23 + 34 

X - 12 = 57

      X  = 57 + 12 

      X  = 69