Jaylin created the following expression: 2/5x −3/10 − x + 1 7/10x − 1/10
Jaylin created an equivalent expression using the following steps:

4/10x + (−1x) +1 7/10x + (−3/10) +(−1/10) 1 1/10x +−2/5
Is his final expression equivalent to the initial expression? Show how you know. If the two expressions are not equivalent, find Jaylin's mistake and correct it.