From a piece of wire, 22 dm were first cut off, and then the same amount.

From a piece of wire, 22 dm were first cut off, and then the same amount. There remained 56 dm of wire. How many decimeters of wire were in the piece?

Let us determine how long the wire was cut from the piece, if it is known that first 22 decimetres were cut, and then another 22 decimeters.
22 + 22 = 44 decimetres.
Let’s determine the initial length of a piece of wire, if after 44 decimetres were cut from it, there are still 56 decimeters left in it.
44 + 56 = 100 decimeters.
Answer: Originally a piece of wire was 100 decimetres long.