SUBSYSTEM + TABULATES = ASSEMBLED ~~ Words Used : ASSEMBLED, SUBSYSTEM and TABULATES.
SUBSYSTEM + YESTERDAY = REMEMBERS ~~ Words Used : REMEMBERS, SUBSYSTEM and YESTERDAY.
The rules for cryptarithm puzzles are simple. Each letter represents one of the digits 0 to 9. Different letters represent different digits. The first digit in a number can't be 0. Your job is to find out what digit each letter represents. This page has links to puzzles containing "SUBSYSTEM"