Question

Simplify [3+20+{7+40(3 1+2 of 20)}]

Answer 1

$$\begin{gathered} Hi, \\ \left[3+20+\left\{7+40\left(31+2of20\right)\right\}\right] \\ =\left[3+20+\left\{7+40\left(31+2\times 20\right)\right\}\right] \\ =\left[3+20+\left\{7+40\left(31+40\right)\right\}\right] \\ =\left[3+20+\left\{7+40\left(71\right)\right\}\right] \\ =\left[3+20+\left\{7+2840\right\}\right] \\ =\left[3+20+2847\right] \\ =2870 \end{gathered}$$