Question

0,4(3x-0,5)+0,7=1,3(15-2x)​

Answer 1

Ответ:

х=5

Пошаговое объяснение:

1,2х-0,2+0,7=19,5-2,6х

1,2х+2,6х=19,5+0,2-0,7

3,8х=19

х=19:3,8

х=5

Answer 2

Let's solve the given equation step by step.

0.4(3x - 0.5) + 0.7 = 1.3(15 - 2x)

First, we can distribute the 0.4 and 1.3 to simplify the equation:

1.2x - 0.2 + 0.7 = 19.5 - 2.6x

Next, let's combine like terms:

1.2x + 0.5 = 19.5 - 2.6x

To isolate the x terms on one side, we can add 2.6x to both sides:

1.2x + 2.6x + 0.5 = 19.5 - 2.6x + 2.6x

This simplifies to:

3.8x + 0.5 = 19.5

Now, let's isolate the x term by subtracting 0.5 from both sides:

3.8x + 0.5 - 0.5 = 19.5 - 0.5

This gives us:

3.8x = 19

Finally, divide both sides by 3.8 to solve for x:

x = 19 / 3.8

Evaluating the division:

x ≈ 5

Therefore, the solution to the given equation is x ≈ 5.