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3 (2m - 6) >= 4 (m + 4)
6m - 18 >= 4m + 16
2m >= 34
m >= 17 (D)
3(2m-6) >=4(m+4)
6m-18>=4m+16
6m-4m>=16+18
2m>=34
m>=34/2
m>=17
jawaban D