Question

1.) 5x = 8x - 15 2.) 4x + 1 = 2 3.) y – 5 = 3y - 25 .) 5x + 6 = 10x + 5 5.) 9y – 11 = -10 +12y 6.) 21 – 6x = 27 – 8x 7.) 11x + 5x -1 = 65x - 36 8.) 8x – 4 + 3x = 7x + x + 14 9.) 8x + 9 - 12x = 4x - 13 – 5x 10.) 5y + 6y – 81 = 7y + 102 + 65y 11.) 16 + 7x – 5 + x = 11x – 3 - x 12.) 3x + 101 - 4x- 33 = 108 -16x - 100 13.) 14 – 12x + 39x – 18x = 256 – 60x – 657x 14.) 8x – 15x – 30x – 51x = 53x + 31x - 172

Answer 1

Respuesta:

1.) 5x = 8x - 15

5x - 8x = - 15

- 3x = - 15

x = - 15/ - 3x

x = 15 / 3

x = 5

2.) 4x + 1 = 2

4x = 2 - 1

4x = 1

x = 1/4

3.) y – 5 = 3y - 25

y - 3y = - 25 + 5

- 2y = - 20

y = -20/-2

y = 20 / 2

y = 10

4.) 5x + 6 = 10x + 5

5x - 10x = 5 - 6

- 5x = - 1

x = -1/-5

x = 1/5

5.) 9y – 11 = -10 +12y

9y -  12y = - 10 + 11

- 3y = 1

y = - 1/3

6.) 21 – 6x = 27 – 8x

- 6x + 8x = 27 - 21

2x = 6

x = 6/2

x = 3

7.) 11x + 5x - 1 = 65x - 36

11x + 5x - 65x = - 36 + 1

- 49x = - 35

x = - 35/ - 49

x = 35/49

x = 5/7

8.) 8x – 4 + 3x = 7x + x + 14

8x + 3x - 7x - x = 14 + 4

3x = 18

x = 18/3

x = 6

9.) 8x + 9 - 12x = 4x - 13 – 5x

8x - 12x - 4x + 5x = - 13 - 9

− 3x = − 22

x = - 22/ - 3

x = 22/3

10.) 5y + 6y – 81 = 7y + 102 + 65y

5y + 6y - 7y - 65y = 102 + 81

− 61y = 183

y = - 183/  61

y = − 3

11.) 16 + 7x – 5 + x = 11x – 3 - x

7x + x - 11x + x = - 3 - 16 + 5

- 2x = - 14

x = - 14/ - 2

x = 14/2

x = 7

12.) 3x + 101 - 4x- 33 = 108 -16x - 100

3x - 4x + 16x = 108 - 100 - 101 + 33

15x = - 60

x = - 60/15

x = - 4

13.) 14 – 12x + 39x – 18x = 256 – 60x – 657x

- 12x + 39x - 18x + 60x + 657x = 256 - 14

726x = 242

x = 242/726

x = 1/3

14.) 8x – 15x – 30x – 51x = 53x + 31x - 172

8x – 15x – 30x – 51x  – 53x – 31x = - 172

- 172x = - 172

x = 1