Question

38<x+31-6<40

Answer 1

Ta có : 38 < x + 31 - 6 < 40 

=> x + 31 - 6 = 39 

=> x + 31 = 45

=> x = 14

Answer 2

x=13 vì 31-6 =25 mà 38-25= 13

Answer 3

Vì 38 < x + 31 - 6 < 40

=> x + 31 - 6 = 39

=> x + 31 = 45

=> x = 14 

Answer 4

Vì 38 < x + 31 - 6 < 40

=> x + 31 - 6 = 39

=> x + 31 = 45

=> x = 14 

Answer 5

Vì 38 < x + 31 - 6 < 40

=> x + 31 - 6 = 39

=> x + 31 = 45

=> x = 14 

Answer 6

Vì 38 < x + 31 - 6 < 40

=> x + 31 - 6 = 39

=> x + 31 = 45

=> x = 14