Hello sorry, I said that I was in college and I'm not ... I'm in 7th grade, Ummm can you help me with some math, I have an exam
...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?
Explanation: If you multiply 36 by 3 you get 108 (36 x 3 = 108) Then you add those two together and you get 144 (36 + 108 = 144) so x= 36. Hope this helps.