Ответ:
-4/18*(2 7/10 * а -1,5b) - 5/6 * (0,48a-2b)= -2/9*(27a/10 - 1,5b) - 0,4a + 5b/3= -0,6a + 1b/3 - 0,4a +5b/3= -1a+ 6b/3= -a+ 2b
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Ответ:
-4/18*(2 7/10 * а -1,5b) - 5/6 * (0,48a-2b)= -2/9*(27a/10 - 1,5b) - 0,4a + 5b/3= -0,6a + 1b/3 - 0,4a +5b/3= -1a+ 6b/3= -a+ 2b