Question

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!! Решить уравнения: 1) 0,1*х+3= 0,3х - 8 2) -5*(2-1,2х) = 7 3)5/х+3 = 6/2х-5 Пожалуйста, более подробный ответ. БОЛЬШОЕ СПАСИБО!!!

Answer 1

-5*(2-1,2Х)=7
-10-6Х=7
-6Х=7-10
-6Х=3
Х=-6/3
Х=-2

Answer 2

0,1х-0,3х=-3-8
-0.2х=-11
х=-11/-0,2
х=55

Answer 3

Solving the Equations

1) 0.1x + 3 = 0.3x - 8

To solve the equation 0.1x + 3 = 0.3x - 8, we can start by isolating the variable x on one side of the equation. Here's the step-by-step solution:

0.1x + 3 = 0.3x - 8 0.1x - 0.3x = -8 - 3 -0.2x = -11 x = -11 / -0.2 x = 55

So, the solution to the equation 0.1x + 3 = 0.3x - 8 is x = 55.

2) -5*(2-1.2x) = 7

To solve the equation -5*(2-1.2x) = 7, we can follow these steps:

-5*(2-1.2x) = 7 -10 + 6x = 7 6x = 7 + 10 6x = 17 x = 17 / 6 x ≈ 2.83

The solution to the equation -5*(2-1.2x) = 7 is approximately x ≈ 2.83.

3) 5/x + 3 = 6/2x - 5

To solve the equation 5/x + 3 = 6/2x - 5, we can proceed as follows:

5/x + 3 = 6/2x - 5 5/x = 6/2x - 5 - 3 5/x = 6/2x - 8 5/x = 3/x - 8 5 = 3 - 8x 8x = 3 - 5 8x = -2 x = -2 / 8 x = -0.25

The solution to the equation 5/x + 3 = 6/2x - 5 is x = -0.25.

I hope these solutions help! If you have any more questions or need further assistance, feel free to ask.