Автор - irosukukuro

Решите уравнение
1) (y+1,6)×(-3)=19,2
2) (x-0,6)×2,5=6
3) (1,8+y)×7=-22,4
4) (2+3)×3,1=12,4
5) (y-1,9)×(-2,4)=12
6) (1,2+x)×(-5)=4

Ответ

Автор - Tatiana16016

1) - 3y - 4.8 = 19.2
 - 3y = 19.2 + 4.8
 - 3y = 24
y =  - 8
2)2.5x - 1.5 = 6
2.5x = 7.5
 times  = 3
3)12.6 + 7y =  - 22.4
7y =  - 22.4 - 12.6
7y =  - 35
y =  - 5
5) - 2.4y + 4.56 = 12
 - 2.4y = 16.56
y =  - 6.9
6) - 6 - 5x = 4
 - 5x = 10
x =  - 2
В четвёртом неполное условие

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