Asked by paul

Joel has twice as many cds as Mary has. Subtracting 7 from the number of cds Joel has and dividing by 3 equals the number of cds Blake has. If Blake has 25 cds, how many cds does Mary have?
Answered by Steve
j = 2m
(j-7)/3 = b
b = 25

start substituting:

(j-7)/3 = 25
j-7 = 75
j = 82
so,
m = 41
Answered by Anastasia
the number of CDs mariella has is 41
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