Question

12-[4÷2+{3÷(1-1_3)}]​

Answer 1

$12 - (4 \div 2 + (3 \div (1 - 1 - 3)))$

$\implies \: 12 - (4 \div 2 + (3 \div( - 3)))$

$\implies \: 12 - (4 \div 2 + ( - 1))$

$\implies \: 12 - (2 - 1)$

$\implies \: 12 - 1$

$\implies11$