Question

1) 2х-3-12=6 2) -4х+6=12 3) х+3+х-3=6 4) х-2+х+4+2х-1=10 5) 2х-1-3=5

Answer 1

Ответ:

Объяснение:

1) 2x-3-12=6

2x=6+3+12

2x=21

x=10.5

2)-4x+6=12

-4x=12-6

-4x=6

x=1.5

3)x+3+x-3=6

2x+3-3=6(сокращаем -3и +3)

2х=6

х=3

4)х-2х+4+2х-1=10(сокращаем -2х и +2х)

х+4-1=10

х=10-4+1

х=7

5)2х-1-3=5

2х=5+1+3

2х=9

х=4,5

Answer 2

1) 2х-3-12=6
2х-15=6
Х= 21
2) -4х+6=12
-4х=6 (делим обе части на -4)
Х=-3/2
3) х+3+х-3=6
2х=6
Х=3
4) х-2+х+4+2х-1=10
4х+1=10
4х=9
Х=9/4
5) 2х-1-3=5
2х-4=5
2х=9
Х=9/2

Answer 3

It looks like you've provided a list of equations. Do you want me to help you solve these equations for the variable "x"? If so, I'd be happy to assist. Let's solve each equation one by one:

1. 2x - 3 - 12 = 6 Combine like terms: 2x - 15 = 6 Add 15 to both sides: 2x = 21 Divide by 2: x = 10.5

2. -4x + 6 = 12 Subtract 6 from both sides: -4x = 6 Divide by -4: x = -1.5

3. x + 3 + x - 3 = 6 Combine like terms: 2x = 6 Divide by 2: x = 3

4. x - 2 + x + 4 + 2x - 1 = 10 Combine like terms: 4x + 1 = 10 Subtract 1 from both sides: 4x = 9 Divide by 4: x = 2.25

5. 2x - 1 - 3 = 5 Combine like terms: 2x - 4 = 5 Add 4 to both sides: 2x = 9 Divide by 2: x = 4.5

So, the solutions for the equations are:

1. x = 10.5
2. x = -1.5
3. x = 3
4. x = 2.25
5. x = 4.5