Answer:
The mistake is the sing of the "3" on the second term.
a=1
Step-by-step explanation:
The mistake was changing the sing of the second term in the first step. You could found it highlighted below.
4a-5=2a-3
4a-2a-5=3 ( the correct expression will be 4a-2a-5=-3)
2a-5=3
2a=8
So , the correct answer is
4a-2a-5=-3
2a=5-3
2a=2
a=1
