Question

2 (x + 7) = 19 x=

3 (x - 4) = 11 x=

10 (x + 7) = 82 x=

5 (x - 4) = 12 x=

Answer 1

Respuesta:

1° x = 2.5

2° x = 7.7

3° x = 1.2

4°  x = 6.4

Explicación paso a paso:

1° 2 (x + 7) = 19

    2x + 14 = 19

    2x = 19 - 14

    2x = 5

    x = 5/2

    x = 2.5

2° 3 (x - 4) = 11

     3x - 12 = 11

     3x = 11 + 12

     3x = 23

     x = 23/3

     x = 7.7

3° 10 (x + 7) = 82

    10x + 70 = 82

    10x = 82 - 70

    10x = 12

    x = 12/10

    x = 1.2

4° 5 (x - 4) = 12

    5x - 20 = 12

    5x = 12 + 20

    5x = 32

    x = 32/5

    x = 6.4

espero que te ayude.

Answer 2

Respuesta:

23/3

Explicación paso a paso

3 (x - 4) = 11

    3x - 12 = 11

    3x = 11 + 12

    3x = 23

    x = 23/3