Mathematics, 30.10.2020 16:50, ehklu1226

Walter and Brian each have a CD collection. The number of CDs in Walter's collection can be represented by x. The number of CDs in Brian's collection is 3 times the number in Walter's collection. The total number of CDs in both collections is 144. What is x, the number of CDs in Walter's collection?

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Walter and Brian each have a CD collection. The number of CDs in Walter's collection can be represen...