Solve the equation
1. 23 = 7x
2. b + 8 = 12.2
you have a rack that can hold 30 CDs. you can fit 7 more CDs on the rack before the rack is full. Which equation models this situation appropriately, where x represents the number of CDs?
A. x + 30 = 7
B. x - 7 = 30
C. 7 + 30 = x
D. x + 7 = 30
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