1) 2a - 8a + 3a
2) 7a - 13a - 4a
3) 9b - 5b -3b
4) 8b + 4b -7b
5)0.6c - c + 0.5c
6) 2.9c + 3c -10c
2) 7a - 13a - 4a
3) 9b - 5b -3b
4) 8b + 4b -7b
5)0.6c - c + 0.5c
6) 2.9c + 3c -10c
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Answers & Comments
1) 2a - 8a + 3a = -6a + 3a = -3a
2) 7a - 13a - 4a = -6a - 4a = -10a
3) 9b - 5b - 3b = 4b - 3b = b
4) 8b + 4b - 7b = 12b - 7b = 5b
5)0.6c - c + 0.5c = -0,4c + 0,5c = 0,1c
6) 2.9c + 3c - 10c = 5,9c - 10c = -4,1c