Question

4.3х-3.5равно1.2х+1.9

Answer 1

4,3х-3,5=1,2х+1,9;
4,3х-1,2х=1,9+3,5;
3,1х=5,4;
х=5,4:3,1;
х=54:31;
х=1 23/31 (одна целая 23/31).

Answer 2

To solve the equation, we need to isolate the variable x on one side of the equation. Let's go through the steps:

4.3x - 3.5 = 1.2x + 1.9

First, let's move all terms containing x to one side of the equation by subtracting 1.2x from both sides:

4.3x - 1.2x - 3.5 = 1.2x - 1.2x + 1.9

This simplifies to:

3.1x - 3.5 = 1.9

Next, let's isolate the term with x by adding 3.5 to both sides:

3.1x - 3.5 + 3.5 = 1.9 + 3.5

This simplifies to:

3.1x = 5.4

Finally, divide both sides by 3.1 to solve for x:

(3.1x) / 3.1 = 5.4 / 3.1

The 3.1 terms cancel out on the left side, and the division on the right side gives:

x = 5.4 / 3.1

Using a calculator, we find:

x ≈ 1.7419 (rounded to four decimal places)

Therefore, the solution to the equation is x ≈ 1.7419.