Question

me podrían ayudar con las siguientes ecuaciones 1. 3y+2 = 11 2. 9x - 6 = 18 3. 2x – 3 = 3x + 6 4. 3x + 5 = 5x – 13 5. 5 (7- x) = 31 – x 6. 6x – 8 = 4 (-2x + 5 ) le doy 5 estrellas y coronita a quien conteste bien

Answer 1

Respuesta:

1

y=3

2

x=8/3

3

x=−9

4

x=5/2

5

x=1

6

x=2

Answer 2

Respuesta:

1. 3y+2 = 11

Solución:

3y +2 = 11  

3y + 2 - 2 = 11 - 2

3y = 9

3y/3= 9/3

y = 3

2. 9x - 6 = 18

Solución:

9x - 6 = 18

9x - 6 + 6 = 18 + 6

9x = 24

9x/9 = 24/9

x = 8/3

3. 2x – 3 = 3x + 6

Solución:

2x – 3 = 3x + 6

2x - 3 + 3 = 3x + 6 + 3

2x = 3x + 9

2x - 3x = 3x + 9 - 3x

-x = 9

-x/-1 = 9/-1

x = -9

4. 3x + 5 = 5x – 13

Solución:

3x + 5 = 5x – 13

3x + 5 - 5 = 5x - 13 - 5

3x = 5x - 18

3x - 5x = 5x - 18 - 5x

-2x = - 18

-2x/-2 = -18/-2

x = 9

5. 5 (7- x) = 31 – x

Solución:

5 (7- x) = 31 – x

35 - 5x = 31 - x

35 - 5x - 35 = 31 - x - 35

-5x = - x - 4

-5x + x = - x  -4 + x

-4x = - 4

-4x/-4 = -4/-4

x = 1

6. 6x – 8 = 4 (-2x + 5 )

Solución:

6x – 8 = 4 (-2x + 5 )

6x - 8 = - 8x + 20

6x - 8 + 8 = -8x + 20 + 8

6x = -8x + 28

6x + 8x = -8x + 28 + 8x

14x = 28

14x/14 = 28/14

x = 2}