Ответ:
1)(27x-9y):3 = 9x - 3y
(117m - 39n) : 13 = 9m-3n
(136a-856):17= 8a - 50.35
(128c-72d):8= 16c-9d
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Ответ:
1)(27x-9y):3 = 9x - 3y
(117m - 39n) : 13 = 9m-3n
(136a-856):17= 8a - 50.35
(128c-72d):8= 16c-9d