Раскройте скобки. Приведите подобные слагаемые. (5,2a-2,8b)-(1,8a+6,8b)-0,9b 4,6a-(6,9a-2,4b)-(2,3a+6,1b). Created by ayzatullova2017. algebra-ru

Раскройте скобки. Приведите подобные слагаемые. (5,2a-2,8b)-(1,8a+6,8b)-0,9b 4,...

LeoMeliss 1) (5,2a - 2,8b) - (1,8a + 6,8b) - 0,9b = 5,2a - 2,8b - 1,8a - 6,8b - 0,9b=
= 3,4a - 10,5b
2) 4,6a - (6,9a - 2,4b) - (2,3a + 6,1b) = 4,6a - 6,9a + 2,4b - 2,3a - 6,1b =
= - 4,6a - 3,7b

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Verified answer

5,2а-2,8b-1,8a-6,8b-0,9b=3,4a-10,5b

4,6a-6,9a+2,4b-2,3a-6,1b=-6a-4,3b

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