Question

If
1 2 3 = 4 5
2 3 3 = 6 4
3 2 1 = 3 9
8 4 0 = 7 2

Then
1 1 1 = ? ?

Answer 1

1 2 3 = 4 5------23*2-1=45
2 3 3 = 6 4------33*2-2=64
3 2 1 = 3 9------21*2-3=39
8 4 0 = 7 2------40*2-8=72
Then
1 1 1 = -----------11*2-1=21

Answer 2

1 2 3 = 4 5 23+23 = 46 -1 = 45
2 3 3 = 6 4 33+33 = 66-2 = 64
3 2 1 = 3 9 21+21 = 42 -3 = 39
8 4 0 = 7 2 40+40 = 80 -8 = 72
1 1 1 = 2 1 11+11 = 22 -1 = 21

Answer 3

------------------- > 21 <------------------------

Answer 4

A.21
1-（11×2）＝21

1-（23×2）＝45
2-（33×2）＝64
3-（21×2）＝39
8-（40×2）＝72