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1. Reduceți termenii asemenea: a) 5a-3,2b-4,9a + 3b + 12; c) 3a-5,7b-6,8a + 2b +21; e) 6a - 7,6b-9,2a + 9b + 25; nii asemenea: (d. The Tw b) 8a -4,7b-5,2a +9b+19; d) 11a-7,3b-8,3a + +7b+13; f) 4a -9,4b-5,3a +9b+45.va rog