Jawabanmu

2014-09-07T18:22:21+07:00
a. −3m + 4n − 6 + 7n − 8m + 10 = -3m - 8m + 4n + 7n - 6 + 10 = -11m + 11n + 4
b. 15a + 7b − 5c −11a − 12b + 13d = 15a - 11a + 7b - 12b - 5c + 13 d = 4a - 5b - 5c + 13d
2 4 2