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elchenkovdima
@elchenkovdima
July 2022
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ПОМОГИТЕ ПОЖАЛУЙСТА.
решите уравнение 0,2(2,1x-2,3)-0,4(3,1x+1,9)=0
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prettypushkova
Verified answer
0,2(2,1х - 2,3) - 0,4(3,1х + 1,9) = 0
0,42х - 0,46 - 1,24х - 0,76 = 0
0,42х - 1,24х = 0,76 + 0,46
- 0,82х = 1,22
х = 1,22 : (-0,82)
х = - 122/82
х = - 1 целая 20/41
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Answers & Comments
Verified answer
0,2(2,1х - 2,3) - 0,4(3,1х + 1,9) = 00,42х - 0,46 - 1,24х - 0,76 = 0
0,42х - 1,24х = 0,76 + 0,46
- 0,82х = 1,22
х = 1,22 : (-0,82)
х = - 122/82
х = - 1 целая 20/41