M 1 2 4 7 July 8, 2019 16 32 64 128 M 1 2 m 2 3 m 4 7 5 4m 2 m 1 2 7 4 1 2m M 4 7m 2 1 4 m 1 7 3m 2 Solve 3 m 2 )- 4 m 1 )= 7 M d 2 7 1 4 M/-7 2 M 1 7
