Question

1) Resolva as seguintes expressões
a) {2-[(5-2:2) + (8+6:3)]}=​

Answer 1

→ Cálculo :

$\\{{\boxed{\begin{array}{lr}{{\left \{ 2-[(5-2\div2)+(8+6\div3)] \right \}}} \\\\{{{ \left \{ 2-[(5-1)+(8+2)] \right \} } } }\\\\{ \left \{ 2-[4+10] \right \}}\\\\{2-14}\\\\\boxed{\red{-12 }} \\ \end{array}}}}$