Question

Simply: $11-\left[7-\left\{5-3\left(9-\overline{3-6}\right)\right\}\right]$.

Answer 1

Solving the question with the help of BODMAS.

B - Bracket, O - Of, D - Division, M - Multiplication, A - Addition, S - Subtraction

Firstly, we have to solve to bracket, then of (change of into $\times$) , division , multiplication, addition and subtraction.

$\begin{array}{rcl}11-\left[7-\left\{5-3\left(9-\overline{3-6}\right)\right\}\right]& =& 11-\left[7-\left\{5-3\left(9+3\right)\right\}\right]\\ & =& 11-\left[7-\left\{5-3\left(9+3\right)\right\}\right]\\ & =& 11-\left[7-\left\{5-3\left(12\right)\right\}\right]\\ & =& 11-\left[7-\left\{5-36\right\}\right]\\ & =& 11-\left[7-\left\{-31\right\}\right]\\ & =& 11-\left[7+31\right]\\ & =& 11-38\\ & =& -27\\ & & \\ & & \end{array}$.

Hence, the answer of this question is $-27$.