Question

- 6х – 7 = 0 Помагите решить все 1) - 6х – 7 = 0. 2) + 6х – 40 = 0. 3) - х – 2 = 0. 4) + 3х + 2 = 0. 5) - 7х - 18 = 0. 6) + 4х – 5 = 0. 7) - 5х + 8 = 0. 8) - 2х + 10 = 0. 9) - 26х + 25 = 0. 10) - 20х + 64 = 0. 11) + 8х + 15 = 0. 12) - 3х - 10 = 0. 13) - 6х + 8 = 0. 14) + 4х - 12 = 0. 15) + 4х - 21 = 0

Answer 1

Ответ:

1)

x=-1 1/6

1)-6x -7=0

-6x=7

-x=7/6

2)+6x-40=0

6x=40

x=40/6

x=6 4/6=6 2/3

3)

-x-2=0

-x=2

x=-2

4)

+3x+2=0

3x=-2

x=-2/3

5)

-7x-18=0

-7x=18

x=-18/7

x=-2 4/7

6)

+4x-5=0

4x=5

x=5/4 =1 1/4

x=1 1/4

7)

-5x+8=0

-5x=-8

x=-8/-5=8/5

x=1 3/5

8)

-2x+10=0

-2x=-10

x=-10/-2=10/2

x=5

9)

-26x+25=0

-26x=-25

x=-25/-26=25/26

x=25/26

10)

-20x+64=0

-20x=-64

x=-64/-20=64/20

x=3 4/20= 3 1/5

x=3 1/5

11)

+8x+15=0

8x=-15

x=15/8

x=1 7/8

12)

-3x-10=0

-3x=10

x=10/-3

x= - 3 1/3

13)

-6x+8=0

-6x=-8

x=-8/-6=8/6

x=1 2/6=1 2/3

x=1 2/3

14)

+4x-12=0

4x=12

x=12/4

x=3

15)

+4x-21=0

4x=21

x=21/4

x=5 1/4

Answer 2

To solve each of these equations for x, follow these steps:

1. -6x - 7 = 0 Add 7 to both sides to isolate the x term: -6x = 7 Divide both sides by -6 to solve for x: x = -7/6

2. +6x - 40 = 0 Add 40 to both sides to isolate the x term: 6x = 40 Divide both sides by 6 to solve for x: x = 40/6 or x = 20/3

3. -x - 2 = 0 Add 2 to both sides to isolate the x term: -x = 2 Multiply both sides by -1 to solve for x: x = -2

4. +3x + 2 = 0 Subtract 2 from both sides to isolate the x term: 3x = -2 Divide both sides by 3 to solve for x: x = -2/3

5. -7x - 18 = 0 Add 18 to both sides to isolate the x term: -7x = 18 Divide both sides by -7 to solve for x: x = -18/-7 or x = 18/7

6. +4x - 5 = 0 Add 5 to both sides to isolate the x term: 4x = 5 Divide both sides by 4 to solve for x: x = 5/4

7. -5x + 8 = 0 Subtract 8 from both sides to isolate the x term: -5x = -8 Divide both sides by -5 to solve for x: x = -8/-5 or x = 8/5

8. -2x + 10 = 0 Subtract 10 from both sides to isolate the x term: -2x = -10 Divide both sides by -2 to solve for x: x = -10/-2 or x = 5

9. -26x + 25 = 0 Subtract 25 from both sides to isolate the x term: -26x = -25 Divide both sides by -26 to solve for x: x = -25/-26 or x = 25/26

10. -20x + 64 = 0 Subtract 64 from both sides to isolate the x term: -20x = -64 Divide both sides by -20 to solve for x: x = -64/-20 or x = 16/5

11. +8x + 15 = 0 Subtract 15 from both sides to isolate the x term: 8x = -15 Divide both sides by 8 to solve for x: x = -15/8

12. -3x - 10 = 0 Add 10 to both sides to isolate the x term: -3x = 10 Divide both sides by -3 to solve for x: x = 10/-3 or x = -10/3

13. -6x + 8 = 0 Subtract 8 from both sides to isolate the x term: -6x = -8 Divide both sides by -6 to solve for x: x = -8/-6 or x = 4/3

14. +4x - 12 = 0 Add 12 to both sides to isolate the x term: 4x = 12 Divide both sides by 4 to solve for x: x = 12/4 or x = 3

15. +4x - 21 = 0 Add 21 to both sides to isolate the x term: 4x = 21 Divide both sides by 4 to solve for x: x = 21/4

These are the solutions for each of the given equations.