Simplify 12c-5f-7c+3f

To simplify 12c-5f-7c+3f, you can combine like terms:

12c - 7c - 5f + 3f

Simplifying the c terms: 12c - 7c = 5c

Simplifying the f terms: -5f + 3f = -2f

Therefore, the simplified form is 5c - 2f.