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AnnaKot03
@AnnaKot03
August 2022
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Помогите пожалуйста :
Решите уравнение
1) ( 1.8 - 0.3y ) * ( 2y + 9 ) = 0 ;
2) ( 5y + 4 ) * ( 1.1y - 3.3 ) = 0.
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Wendento
(1.8-0.3y)*(2y+9)=0
1.8-0.3y=0 или 2y+9=0
0.3y= -1.8 2y= -9
y= -1.8/0.3 y= -9/2
y= -6 y= -4.5
(5y+4)*(1.1y - 3.3)=0
5y+4=0 или 1.1y-3.3=0
5y= -4 1.1y= 3.3
y= -4/5 y= 3.3/1.1
y= -0.8 y= 3
4 votes
Thanks 5
AnnaKot03
Спасибо)
Wendento
Пожалуйста
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Answers & Comments
1.8-0.3y=0 или 2y+9=0
0.3y= -1.8 2y= -9
y= -1.8/0.3 y= -9/2
y= -6 y= -4.5
(5y+4)*(1.1y - 3.3)=0
5y+4=0 или 1.1y-3.3=0
5y= -4 1.1y= 3.3
y= -4/5 y= 3.3/1.1
y= -0.8 y= 3