Question

If
5+5 = 1
5-4 = 20
5x1 = 4
5/4 = 9
Then
14+ [16/ {(6x7)-(5/4)}] =?

Answer 1

14-{16+{(6-7)*(5+4)}}

14-(16+(1*9))

14-(16+9)

14-25

-11