Question

7*(0.4х-0.1)=5(0.4Х-0.6)-2х-0.5

Answer 1

7*(0.4х-0.1)=5(0.4х-0.6)-2х-0.5

2.8х-0.7=2х-3-2х-0.5

2.8х-2х+2х=-3-0.5+0.7

2.8х=-2.8

х=-2.8 : 2.8

х=-1

Ответ: Х=-1

Answer 2

7*(0.4х-0.1)=5(0.4x-0.6)-2х-0.5
2,8x-0,7=2x-3-2х-0.5
2,8x-2x+2х=0,7-3-0.5
2,8x=-2,8
x=-2,8/2,8
x=-1

Answer 3

I can help you solve this equation. Here are the steps:

1. Expand the brackets on both sides of the equation:

$$2.8x - 0.7 = 2x - 3 - 2x - 0.5$$

2. Simplify by collecting like terms on both sides:

$$2.8x - 0.7 = -3.5$$

3. Add 0.7 to both sides:

$$2.8x = -2.8$$

4. Divide both sides by 2.8:

$$x = -1$$

The solution is $$x = -1$$.