Question

What is the value of the following expression? 2×{6+[12÷(3+1)]}-1

Answer 1

3+1=4
12/4=3
6+3=9
9*2=18
18-1=17

Answer 2

First of all 3+1=4
Next divide 12 and 4 that equals 3
3+6 is equal to 9
9×2=18
Finally 18-1=17
My answer is 17