Question

помогите пожалуйста​

Answer 1

Ответ:

$- 1.5x = 0.09 \\ x = 0.09 \div ( - 1.5) = - 0.9 \div 15 \\ x = - 0.06$

$4.6x - 2.8(5x + 3) = 10.4 \\ 4.6x - 14x - 8.4 = 10.4 \\ - 9.4x - 8.4 = 10.4 \\ - 9.4x = 10.4 + 8.4 \\ - 9.4x = 18.8 \\ x = 18.8 \div ( - 9.4) \\ x = - 188 \div 94 \\ x = - 2$

$1.5x - 1.75x - 3.6 = - 1.4 \\ - 0.25x - 3.6 = - 1.4 \\ - 0.25 x= - 1.4 + 3.6 \\ - 0.25x = 2.2 \\ x = 2.2 \div ( - 0.25) \\ x = - 220 \div 25 \\ x = - 8.8$

Answer 2

Ответ:

1) -1,5x=0,09

x = 0,09:(-1,5)= -0,06

2) 4,6x - 2,8(5x+3)=10,4

4,6x-14x-8,4=10,4

-9,4x=18,8

x=-2

3) 1,5x-1,75x-3,6=-1,4

-0,25x=2,2

x=-8,8