Question

-12+5.(8)-(-16):(-1+3²) ?

Answer 1

-12+40+16:8=
-12+40+2=
30

Answer 2

$-12+\underbrace{5\cdot8}_{40}\underbrace{-(-16)}_{16}\div\underbrace{(-1+3^2)}_{-1+9=8}=-12+40+16\div8=-12+40+2=30$