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КираСевостьянова
@КираСевостьянова
July 2022
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Помогите решить уравнение 5 класс. 14x + 27x =656, 81y + 38y = 645
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IriskaNyan
14х + 27х = 656
41х = 656
х= 656 : 41
х= 16
14 * 16 + 27*16 = 656
16 *(14+27) = 656
16 * 41 = 656
656=656
81у + 38у = 645
119у=645
у= 645 : 119 = 645/119
у= 5 50/119
81 * 5 50/119 + 38 * 5 50/119 =645
81/1 * 645/119 + 38/1 * 645/119 = 645
(52245 + 24510)/119 =645
76755/119 = 645
645=645
2 votes
Thanks 1
КираСевостьянова
Спасибо
zhenyaM2002
5 10/119 = (5*119 + 10 ) / 119 = 605/119 , а не 645/119
zhenyaM2002
Verified answer
14х+27х=656
41х=656
х=16
81у+38у=645
119y=645
y=645/119= 5 целых 10/119
0 votes
Thanks 0
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Answers & Comments
41х = 656
х= 656 : 41
х= 16
14 * 16 + 27*16 = 656
16 *(14+27) = 656
16 * 41 = 656
656=656
81у + 38у = 645
119у=645
у= 645 : 119 = 645/119
у= 5 50/119
81 * 5 50/119 + 38 * 5 50/119 =645
81/1 * 645/119 + 38/1 * 645/119 = 645
(52245 + 24510)/119 =645
76755/119 = 645
645=645
Verified answer
14х+27х=65641х=656
х=16
81у+38у=645
119y=645
y=645/119= 5 целых 10/119