Question

4) 3(2x – 1) + 6x = 10x - 7;​

Answer 1

Ответ:

6х - 3 +6х=10х-7

6х+6х-10х=3-7

2х=-4

х=-2

Answer 2

To solve the equation 3(2x - 1) + 6x = 10x - 7, you can follow these steps:

1. Distribute the 3 on the left side of the equation to eliminate the parentheses:

   6x - 3 + 6x = 10x - 7

2. Combine like terms on both sides of the equation. On the left side, combine 6x and 6x to get 12x, and on the right side, there are no like terms to combine:

   12x - 3 = 10x - 7

3. Now, let's isolate the variable x on one side of the equation. You can do this by moving the 10x term from the right side to the left side. To do that, subtract 10x from both sides of the equation:

   12x - 10x - 3 = -7

4. Simplify both sides of the equation:

   2x - 3 = -7

5. Next, add 3 to both sides of the equation to isolate the 2x term:

   2x - 3 + 3 = -7 + 3

   2x = -4

6. Finally, divide both sides by 2 to solve for x:

   (2x)/2 = (-4)/2

   x = -2

So, the solution to the equation 3(2x - 1) + 6x = 10x - 7 is x = -2.