Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is a
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<span>16z + 29z=pz - v
45z - pz = -v
z(45 - p) = -v
z = </span>
45z - pz = -v
z(45 - p) = -v
z = </span>