Question

1) 2x-8=12-3x. 3)6x-7=5x+42)12-x=24-5x. . 4)7x+8=-10x-7​

Answer 1

Ответ:

1) 2х-8=12-3х

2х-8-12+3х=0

5х-20=0

5х=-20

х=-4

Ответ:х=-4

Пошаговое объяснение:

2) 6х-7=5х+4

6х-7-5х-4=0

х-8=0

х=-8

Ответ:х=-8

3) 12-х=24-5х

12-х-24+5х=0

-4х=-12

х=3

Ответ:х=3

4) 7х+8=-10х-7

7х+8+10х+7=0

17х+15=0

х=1.13

Ответ:х=1.13

Answer 2

Sure, I can help you solve these equations:

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

To solve this equation, we want to isolate the variable x on one side. First, let's get all the x terms on one side by adding 3x to both sides:

2x + 3x - 8 = 12

Now, combine like terms:

5x - 8 = 12

Next, add 8 to both sides to isolate the variable x:

5x = 12 + 8 5x = 20

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

x = 20 / 5 x = 4

So, the solution is x = 4.

2. 6x - 7 = 5x + 4:

To solve this equation, we'll isolate the variable x. Start by subtracting 5x from both sides:

6x - 5x - 7 = 4

Now, combine like terms:

x - 7 = 4

Next, add 7 to both sides to isolate x:

x = 4 + 7 x = 11

So, the solution is x = 11.

3. 12 - x = 24 - 5x:

To solve this equation, we'll isolate the variable x. Start by adding 5x to both sides:

12 - x + 5x = 24

Now, combine like terms:

12 + 4x = 24

Next, subtract 12 from both sides:

4x = 24 - 12 4x = 12

Now, divide both sides by 4 to solve for x:

x = 12 / 4 x = 3

So, the solution is x = 3.

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

To solve this equation, we'll isolate the variable x. Start by adding 10x to both sides:

7x + 10x + 8 = -7

Now, combine like terms:

17x + 8 = -7

Next, subtract 8 from both sides:

17x = -7 - 8 17x = -15

Now, divide both sides by 17 to solve for x:

x = -15 / 17

So, the solution is x = -15/17.