I want system rw remount = Cannot Remount /dev/loop3

I’m using fydeos 19 VMware version.

1- shell
2- sudo -i
3- mount -o rw,remount /mnt/stateful_partition/unencrypted/android/root

When I type this command, I get the following error:

cannot remount /dev/loop3 read-write, is write-protected.
dmesg(1) may have more information after the failed mount system call.

How can I solve this problem?