Question

5(1,2х+ 2)-7= 3( х-4).​

Answer 1

Ответ:

Пошаговое объяснение:

5(1,2х+ 2)-7= 3( х-4)

6х + 10 - 7 = 3х - 12

6х - 3х = - 12 - 3

3х = - 15

х = - 15 : 3

х = - 5

Answer 2

Пошаговое объяснение:

5(1,2х + 2) - 7 = 3(х - 4)

6х + 10 - 7 = 3х - 12

6х - 3х = -12 - 10 + 7

3х = -15

х = -15 : 3

х = -5

Answer 3

To solve the equation 5(1,2x + 2) - 7 = 3(x - 4), we will simplify and solve for x.

Let's start by distributing the multiplication to both terms inside the parentheses:

5 * 1 = 5 5 * (2x) = 10x 5 * 2 = 10

Now our equation becomes:

5(2x + 2) - 7 = 3(x - 4)

Simplifying further:

10x + 10 - 7 = 3x - 12

Combining like terms:

10x + 3 = 3x - 12

Next, let's move all the terms containing x to one side of the equation and the constant terms to the other side:

10x - 3x = -12 - 3

Simplifying again:

7x = -15

To solve for x, we divide both sides of the equation by 7:

x = -15/7

Therefore, the solution to the equation 5(1,2x + 2) - 7 = 3(x - 4) is x = -15/7.