Question

15-1,8x=8+3,2x i 3x+4=2(x+1,3).

Answer 1

Ответ:

15-1,8x=8+3,2x

-1,8х-3,2х=8-15

-5х= -7

х= -7 : (-5)

х=1,4

Ответ: х= 1,4

3x+4=2(x+1,3)

3х+4=2х+2,6

3х-2х=2,6-4

х= -1,4

Ответ: х= -1,4

Если речь идет о сравнении, то

15-1,8x=8+3,2x  > 3x+4=2(x+1,3)

Answer 2

Let's solve the equations step by step:

1. 15 - 1 * 8x = 8 + 3.2x

First, we can simplify the equation:

15 - 8x = 8 + 3.2x

Next, let's gather the x terms on one side of the equation and the constant terms on the other side:

-8x - 3.2x = 8 - 15

Combining the x terms:

-11.2x = -7

To isolate x, we divide both sides of the equation by -11.2:

x = (-7) / (-11.2) x = 0.625

So the solution to the first equation is x = 0.625.

2. 3x + 4 = 2(x + 1.3)

First, distribute the 2 to the terms inside the parentheses:

3x + 4 = 2x + 2 * 1.3

Simplifying:

3x + 4 = 2x + 2.6

Next, gather the x terms on one side and the constant terms on the other side:

3x - 2x = 2.6 - 4

Combining the x terms:

x = -1.4

So the solution to the second equation is x = -1.4.

To summarize, the solutions to the given equations are:

1. x = 0.625
2. x = -1.4