Respuesta :

Answer:

7

Step-by-step explanation:

2d - 7 = 7

2d = 7 + 7

2d = 14

[tex]d = \frac{14}{2} [/tex]

= 7

...

2d - 7 =7
First add seven to both sides to get
2d = 14
Divide 2 by both sides to get
D = 7