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Lerochka0204
@Lerochka0204
August 2022
2
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помогите пожалуйста)
упростите выражения:
-21(4-10а)-54а; 28-10d+4(d+18) 30 баллов даю)))
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Inna0512
-21(4-10a)-54a=-84+210a-54a=156a-84
28-10d+4(d+18)=28-10d+4d+72=-6d+100
2 votes
Thanks 1
AKa04
A)-21 (4*10a)-54a=-21 (40a)-54a=-840a-54a=-894a
b)46-9d
1 votes
Thanks 1
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Answers & Comments
28-10d+4(d+18)=28-10d+4d+72=-6d+100
b)46-9d