Respuesta :
Answer:
d = 3
Step-by-step explanation:
6*3=18
2d*6=12d
54-18 = 12d
36/12 = 12d/12
d = 3
Answer:
d = 3
Step-by-step explanation:
6 ( 3 + 2d ) = 54
First, solve the brackets.
18 + 12d = 54
Take 18 to the right side.
12d = 54 - 18
12d = 36
Divide both sides by 12.
d = 3