Answer:
d = 35/9
Step-by-step explanation:
28-4d= 5d - 7
Add 4d to each side
28-4d+4d= 5d +4d- 7
28 = 9d-7
Add 7 to each side
28+7 = 9d-7+7
35 = 9d
Divide each side by 9
35/9 = 9d/9
d = 35/9
Answer:
d= 3.88888889
rounded to the nearest tenth= 3.9
rounded to the nearest hundredth= 3.89
Step-by-step explanation:
28-4d=5d-7 add 7 to both sides
35-4d=5d add 4d to both sides
35=9d divide both sides by 9
3.88888889=d
3.89=d
3.9=d
