\(65+\left[\left(-38\right)+\left(-65\right)\right]-\left[12-\left(-42\right)\right]\)
\(=65+\left(-38\right)+\left(-65\right)-12-42\)
\(=\left[65+\left(-65\right)\right]+\left(-38-12-42\right)\)
\(=0-92=-92\)
={65-65}]+[{-42+12}]+-38
=0+-54+-38
=0+-{54+38}
0+-92
-92