5m Zen
5a 2b c 3a
5a 2b c 3a pictures 5
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5a 2b c
5a 2b c 3a
5a 3a 2b c 2c
5a 6b 4c c 2b 3a
5a 2b c )+( 3a 7b
3a 2b c 5a 4b 2c
add 3a 2b c 5a 8b 7c
3a 2b c 5a 8b 7c
simplify 5a 2b c 3a 5b 2c
5a 2b c 3a 5b 2c
