Question

{5x[(31-√9): 7+2 elevado a 3] - √144} : (4-1)

Answer 1

{5x[(31-√9):7+2^3] - √144} :(4-1) =
{5x[(31-3):7+2^3]-12}:3 =
{5x[28:7+8]-12}:3=
{5x[4+8]-12}:3
{5x12-12}:3
{60-12}:3
48:3 = 16 ;)