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Verified answer
Mapel : MatematikaBab : Aljabar
A] -3m + 4n - 6 + (7n - 8m + 10)
= -3m + 4n - 6 + 7n - 8m + 10
= -3m - 8m + 4n + 7n - 6 + 10
= -11m + 11n + 4