Question

2) 7х – 1 = 5х +23 13) 2 – 3х = 28 – 5х. 14) 6х + 3 = 5х + 17

Answer 1

$2) \: 7x - 1 = 5x + 23 \\ 7x - 5x = 23 + 1 \\ 2x = 24 \\ \\ x = \frac{24}{2} = 12$

$13) \: 2 - 3x = 28 - 5x \\ 5x - 3x = 28 - 2 \\ 2x = 26 \\ \\ x = \frac{26}{2} = 13$

$14) \: \: 6x + 3 = 5x + 17 \\ 6x - 5x = 17 - 3 \\ x = 14$

ПРАВИЛО!

Все числа с буквами переносим влево с противоположными знаками, а просто числа переносим вправо также с противоположными знаками

Answer 2

Решение на фото, удачи

Answer 3

Let's solve these equations one by one:

2. 7x - 1 = 5x + 23

To solve for x, first, you want to isolate x on one side of the equation. You can do this by moving the variables and constants to different sides of the equation:

Subtract 5x from both sides: 7x - 5x - 1 = 23

This simplifies to: 2x - 1 = 23

Now, add 1 to both sides to isolate 2x: 2x - 1 + 1 = 23 + 1

This simplifies to: 2x = 24

Finally, divide both sides by 2 to solve for x: 2x / 2 = 24 / 2 x = 12

So, the solution to the equation is x = 12.

13. 2 - 3x = 28 - 5x

To solve for x, again, you want to isolate x on one side of the equation:

Add 5x to both sides: 2 - 3x + 5x = 28

This simplifies to: 2 + 2x = 28

Now, subtract 2 from both sides to isolate 2x: 2 + 2x - 2 = 28 - 2

This simplifies to: 2x = 26

Finally, divide both sides by 2 to solve for x: 2x / 2 = 26 / 2 x = 13

So, the solution to the equation is x = 13.

14. 6x + 3 = 5x + 17

To solve for x, isolate x on one side of the equation:

Subtract 5x from both sides: 6x - 5x + 3 = 17

This simplifies to: x + 3 = 17

Now, subtract 3 from both sides to isolate x: x + 3 - 3 = 17 - 3

This simplifies to: x = 14

So, the solution to the equation is x = 14.