Posted by kattie on Monday, January 3, 2011 at 11:50pm.
12 - (1 1/2)C = 2 1/2.
12 - 3C/2 = 5/2,
-3C/2 = 5/2 - 12,
Multiply both sides by -2:
3C = -5 + 24,
3C = 19,
C = 19/3 = 6 1/3.
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