Question

Даю 30 баллов.Решите уравнения:2,8-х=1,3-6х и10х-(2х+4)=60

Answer 1

2,8-х=1,3-6х

6x - x = 1,3 - 2,8

5x = -1,5

x = -1,5 : 5

x = -0,3

и

10х-(2х+4)=60

10x - 2x - 4 = 60

8x - 4 = 60

8x = 60 + 4

8x = 64

x = 64 : 8

x = 8

Answer 2

1) -x + 6x = 1.3 - 2.8

5x= -1.5

x = -0.3  

2) 10x - (2x+4) = 60

10x - 2x - 4 = 60

8x-4=60

8x=60 + 4      8x= 64    x = 8  )))