Question

0,6x-1,6(x-4)=3(7-0,4x)ПЛЗ СЛОЖНАААА

Answer 1

0,6х-1,6х+6,4=21-1,2х
0,6х-1,6х+1,2х=21-6,4
0,2х=14,6
х=14,6/0,2=73
Ответ: х=73

Answer 2

To solve the equation 0.6x - 1.6(x - 4) = 3(7 - 0.4x), we can follow a step-by-step approach. Let's break it down:

Step 1: Distribute and simplify

First, we need to distribute and simplify the equation. Let's start with the left side:

0.6x - 1.6(x - 4)

Distributing -1.6 to both terms inside the parentheses, we get:

0.6x - 1.6x + 6.4

Simplifying further, we have:

-1x + 6.4

Now, let's simplify the right side:

3(7 - 0.4x)

Distributing 3 to both terms inside the parentheses, we get:

21 - 1.2x

Step 2: Combine like terms

Next, we can combine like terms on both sides of the equation. On the left side, we have -1x + 6.4, and on the right side, we have 21 - 1.2x.

Step 3: Move variables to one side

To isolate the variable, we need to move all the terms with x to one side of the equation. Let's move the terms with x to the left side:

-1x + 1.2x = 21 - 6.4

Simplifying further, we have:

0.2x = 14.6

Step 4: Solve for x

To solve for x, we need to divide both sides of the equation by 0.2:

(0.2x)/0.2 = 14.6/0.2

Simplifying further, we have:

x = 73

Step 5: Check the solution

To check if our solution is correct, we can substitute the value of x back into the original equation and see if both sides are equal.

Let's substitute x = 73 into the original equation:

0.6x - 1.6(x - 4) = 3(7 - 0.4x)

0.6(73) - 1.6(73 - 4) = 3(7 - 0.4(73))

43.8 - 1.6(69) = 3(7 - 29.2)

43.8 - 110.4 = 3(-22.2)

-66.6 = -66.6

Since both sides of the equation are equal, we can conclude that the solution x = 73 is correct.

Therefore, the solution to the equation 0.6x - 1.6(x - 4) = 3(7 - 0.4x) is x = 73.