Answer :
The equation to find the total number of CDs is
c - 64 = 147.
The number of CDs Gabriella originally had is 211.
Option D is the correct answer.
What is an equation?
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 4 is an equation.
We have,
Number of CDs = c
The number of CDs given away = 64.
Number of CDs left = 147
Now,
Total number of CDs.
c - 64 = 147
c = 147 + 64
c = 211
Thus,
The total number of CDs is 211.
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ2