Question

Розв'язу207. Розв'яжіть рівняння:1) 4x = 24 + x;2) 8x -8=20-6x;3) 9-4x = 3x - 40;​

Answer 1

Ответ:

Пошаговое объяснение:

1)

4х - х = 24

3х = 24

х = 24 : 3

х = 8

2)

8х + 6х = 20 + 8

14х = 28

х = 28 : 14

х = 2

3)

-4х - 3х = -40 - 9

-7х = -49

х = -49 : (-7)

х = 7

Answer 2

Ответ:

8;2;7

Пошаговое объяснение:

1)4х=24+х

4х-х=24

3х=24

х=8

2)8х-8=20-6х

8х+6х=20+8

14х=28

х=2

3)9-4х=3х-40

-4х-3х=-40-9

-7х=-49

х=7

Answer 3

1. 4x = 24 + x

To solve this equation, you want to isolate x on one side of the equation. You can do this by subtracting x from both sides:

4x - x = 24

This simplifies to:

3x = 24

Now, divide both sides by 3 to solve for x:

3x/3 = 24/3

x = 8

So, the solution to the first equation is x = 8.

2. 8x - 8 = 20 - 6x

To solve this equation, first, get all the x terms on one side of the equation and the constant terms on the other side:

8x + 6x = 20 + 8

This simplifies to:

14x = 28

Now, divide both sides by 14 to solve for x:

14x/14 = 28/14

x = 2

So, the solution to the second equation is x = 2.

3. 9 - 4x = 3x - 40

To solve this equation, start by getting the x terms on one side of the equation and the constant terms on the other side:

9 + 40 = 3x + 4x

This simplifies to:

49 = 7x

Now, divide both sides by 7 to solve for x:

7x/7 = 49/7

x = 7

So, the solution to the third equation is x = 7.