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b+5b+6b=
d+d+d+d
9p+9p+9p


b+b+b
14p+20p+p
10a+3a+2 a

b+5b+6b=12b

d+d+d+d=4d

9p+9p+9p =27p

b+b+b=3b

14p+20p+p=35p

10a+3a+2 a=15a

b+5b+6b=1b+5b+6b=12b

d+d+d+d=1b+1b+1b+1b=4b

9p+9p+9p = (9+9+9) p=27p

b+b+b=3b

14p+20p+p=14p+20p+1p=35p

10a+3a+2a= (10+3+2) a=15a

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