Question

simplify [20-2 {5+(-12)}×{2 (5-2-9)}]

Answer 1

Hey Friend,
Here is your answer,

[20-2{5-12}×{2(5-11)}
[20-2×(-7)]×{2×(-6)}
[20-(-14)]×{-12}
[20+14]×(-12)
34× (-12)
-398
Hope this helps.