Respuesta :
Answer:b)1
Step-by-step explanation:
7d+7=14
Step 1: Subtract 7 from both sides.
7d-+7-7=14-7
7d=7
Step 2: Divide both sides by 7.
7d/7=7/7
d=1
Hope that helps :)
Answer: b
Step-by-step explanation:
[tex]7d+7=14\\7d=14-7\\7d=7\\d=\frac{7}{7}\\ d=1[/tex]