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AlexGDG
@AlexGDG
July 2022
2
5
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Раскройте скобки.Приведите подобные слагаемые.Упростите полученное выражение.
1.-10+4(а-3)
2.7y-2(3y+8)
3.-4(8n-7)-28n
4.3b-6(2-4b)
5.7(c-3)-6(c+2)+(4-2c)
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Answers & Comments
YarikLo
1.-10+4 (а-3)
-10+4а-12
-22+4а
4а-22.
1 votes
Thanks 1
DenQ04a
1) -10+4(а-3) = =10 + 4a - 12 = 4a -2
2)
7y-2(3y+8) = 7y -6y - 16 = y - 16
3)
-4(8n-7)-28n = -32n + 28 - 28n = 28 - 60n
4)
3b-6(2-4b) = 3b - 12 + 24b = 27b - 12
5)
7(c-3)-6(c+2)+(4-2c) - 7c - 21 - 6c - 12 + 4 - 2c = -15c - 29
2 votes
Thanks 2
DenQ04a
-10+4(а-3) = =10 + 4a - 12 = 4a - 22
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Answers & Comments
-10+4а-12
-22+4а
4а-22.
2) 7y-2(3y+8) = 7y -6y - 16 = y - 16
3) -4(8n-7)-28n = -32n + 28 - 28n = 28 - 60n
4) 3b-6(2-4b) = 3b - 12 + 24b = 27b - 12
5) 7(c-3)-6(c+2)+(4-2c) - 7c - 21 - 6c - 12 + 4 - 2c = -15c - 29