Question

resolva as expressões numérica {5-(6-(12-10÷2+1)÷2]}

Answer 1

{5-(6-(12-10÷2+1)÷2]} =
{5 - [6 - (12 - 10 / 2 + 1) / 2]} =
{5 - [6 - (12 - 5 + 1)]} =
{5 - [6 - 8]} = 
5 - (-2) = 
5 + 2 =
7