Question

{3 [5 + 6 (3 - 4 ÷ 2) - 11 ] + 45 ÷(3 x 5)} -1 =

Answer 1

[3(5+6(3-2)-11)+45/(15)]-1

[3(5+6(1)-11)+3]-1

[3(11-11)+3]-1

[3(0)+3]-1

[3]-1= 2