а) 24a×4 = 96aб) 3a×7×b×4×c = 84abcв) 5x+7x = 12xг) 34a-a = 33aд) 14m+15m+16 = 29m+16е) 12(5a-6) = 60a-72з) 7(5x+7y-6a) = 35x+49y-42a
а) 24a×4 = 96a
б) 3a×7×b×4×c = 84abc
в) 5x+7x = 12x
г) 34a-a = 33a
д) 14m+15m+16 = 29m+16
е) 12(5a-6) = 60a-72
з) 7(5x+7y-6a) = 35x+49y-42a