Question

Решите-7х=13-2(8х-7)​

Answer 1

$- 7x = 13 - 2 \times (8x - 7) \\ \\ - 7x - 13 + 16x + 14 = 0 \\ \\ - 7 + 16x = 14 + 13 \\ \\ \\ \\ 9x = 27 \\ \\ x = 27 \div 9 \\ \\ x = 3$

~•~•~•ZLOY_TIGROVSKIY~•~•~•

Answer 2

-7x=13-2(8x-7)

-7x=13-16x+14

-7x+16x=13+14

9x=27

x=3

Answer 3

To solve the equation, we need to perform the operations step by step to isolate the variable x. Let's start:

1. Distribute the -2 on the second term inside the parentheses: -2(8x - 7) = -2 * 8x + 2 * 7 = -16x + 14

Now the equation becomes: -7x = 13 - (-16x + 14)

2. Simplify the right side by removing the parentheses: -7x = 13 + 16x - 14

3. Combine like terms on the right side: -7x = 16x - 1

4. Move all terms containing x to one side of the equation: -7x - 16x = -1

5. Combine like terms on the left side: -23x = -1

6. To solve for x, divide both sides by -23: x = (-1) / (-23)

   Simplify the right side: x = 1/23

So the solution to the equation is: x = 1/23.