Question

6х-19=-х-10 0,7-0,2х=0,3х-1,8

Answer 1

Ответ:

1. 6х-19=-х-10

6х-х=-10+19

5х=9

х=1.8

2. 0,7-0,2х=0,3х-1,8

-0.2х-0.3х=1.8-0.7

-0.5х=1.1

х=-2.2

Пошаговое объяснение:

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Answer 2

Let's solve these two equations step by step:

1. 6x - 19 = -x - 10

First, let's isolate the variable x on one side of the equation. To do this, we'll add x to both sides of the equation and add 19 to both sides of the equation:

6x + x - 19 + 19 = -x + x - 10 + 19

This simplifies to:

7x = 9

Now, to solve for x, divide both sides of the equation by 7:

7x / 7 = 9 / 7

x = 9/7

So, the solution to the first equation is x = 9/7.

2. 0.7 - 0.2x = 0.3x - 1.8

First, let's simplify this equation by moving the variable terms to one side and the constant terms to the other side.

Add 0.2x to both sides:

0.7 - 0.2x + 0.2x = 0.3x - 0.2x - 1.8

This simplifies to:

0.7 = 0.1x - 1.8

Next, add 1.8 to both sides:

0.7 + 1.8 = 0.1x - 1.8 + 1.8

2.5 = 0.1x

Now, to solve for x, divide both sides of the equation by 0.1:

2.5 / 0.1 = 0.1x / 0.1

25 = x

So, the solution to the second equation is x = 25.

To summarize:

1. The solution to the first equation is x = 9/7.
2. The solution to the second equation is x = 25.