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Verified answer
- Fungsi -f(x) = 6-3x
f(m) = 9
6-3m = 9
3m = 6-9
3m = -3
m = -1
f(-3) = n
6-3(-3) = n
6+9 = n
n = 15
maka, m-n = -1-15 = -16
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