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20070621
@20070621
August 2022
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упростите выражение и найдите его значение:
1) 2 (х+7)+4х при х = 5
2) 9 (3-у)+15 при у = 2;
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chocolade13
Вот. Пожалуйста. Пользуйся
4 votes
Thanks 5
Fixytup
1) 2(х+7)+4х при х = 5
2x+14+4x=6x+14=6*5+14=30+14=44
2) 9(3-у)+15 при у = 2
27-9y+15=42-9*2=42-18=24
6 votes
Thanks 7
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Answers & Comments
2x+14+4x=6x+14=6*5+14=30+14=44
2) 9(3-у)+15 при у = 2
27-9y+15=42-9*2=42-18=24