Gabriella owned so many CDs that she gave 64 of them away. After donating the CDs, she still had 147 left. Write and solve an equation to find the number of CDs c Gabriella had originally.

• c + 64 = 147; 83 CDs
• c + 147 = 64; 83 CDs
• c + 147 = 64; 211 CDs
• c – 64 = 147; 211 CDs

c-64+147;211