3,56-(18.2+6/3.5)+|-85-38.4|
= 3.56 - (18.2 + 1.714) + |-123.4|
= 21 - 19.914 + |-123.4|
= 1.086 + |-123.4|
= 1.086 + 123.4
= 124.486

Therefore, the final result is 124.486.