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1 Jawaban
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1. Jawaban fatimah3085
3) a) (-3m + 4n - 6) - (7n - 8m + 10)
= 5m - 3n - 16
b) (15a + 7b - 5c) - (-11a - 12b + 13d)
= 26a + 19b - 5c - 13d