Question

1) 2x-8=12-3x. 2)12-x=24-5x. 3)6x-7=5x+4.4)-7x+8=-10x-7​

Answer 1

Ответ:

1) 2x-8=12-3x.

3х+2х=12+8

5х=20÷5

х=4

2)12-x=24-5x.

5х-х=24-12

4х=12÷4

х=3

3)6x-7=5x+4.

6x-5х=4+7

х=11

4)-7x+8=-10x-7​

10x-7х=8=-8-7

3х=-15÷3

х=-5

Пошаговое объяснение:

Answer 2

Ответ:

1)  х = 4

2) х = 3

3) х = 11

4) х = -5

Пошаговое объяснение:

1) 2x-8=12-3x → 2х + 3х = 12 + 8 → 5х = 20 → х = 20/5 → х = 4

2)12-x=24-5x → -х + 5х = 24 - 12 → 4х = 12 → х = 12/4 → х = 3

3)6x-7=5x+4 → 6х - 5х = 4 + 7 → х = 11

4)-7x+8=-10x-7​ → -7х + 10х = -7 - 8 →  3х = -15 → х = -15/3 → х = -5

Answer 3

Let's solve each of these equations step by step:

1. 2x - 8 = 12 - 3x

First, let's get all the x terms on one side of the equation and constants on the other side.

Add 3x to both sides:

2x + 3x - 8 = 12

Combine like terms:

5x - 8 = 12

Now, add 8 to both sides:

5x = 12 + 8 5x = 20

Finally, divide both sides by 5 to solve for x:

x = 20 / 5 x = 4

So, the solution to this equation is x = 4.

2. 12 - x = 24 - 5x

First, let's get all the x terms on one side of the equation and constants on the other side.

Add x to both sides:

12 - x + x = 24

The x term on the left side cancels out:

12 = 24

This equation is not true. It has no solution.

3. 6x - 7 = 5x + 4

First, let's get all the x terms on one side of the equation and constants on the other side.

Subtract 5x from both sides:

6x - 5x - 7 = 4

Combine like terms:

x - 7 = 4

Now, add 7 to both sides:

x - 7 + 7 = 4 + 7

x = 11

So, the solution to this equation is x = 11.

4. -7x + 8 = -10x - 7

First, let's get all the x terms on one side of the equation and constants on the other side.

Add 10x to both sides:

-7x + 10x + 8 = -7

Combine like terms:

3x + 8 = -7

Now, subtract 8 from both sides:

3x + 8 - 8 = -7 - 8

3x = -15

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

x = -15 / 3 x = -5

So, the solution to this equation is x = -5.