mia30700
mia30700 mia30700
  • 03-03-2017
  • Mathematics
contestada

9d + d + 2d - 4 = 6d

A: 2/3
B: -2
C: 2/9
D: -9

Please comment

Respuesta :

SuperLegend
SuperLegend SuperLegend
  • 06-03-2017
9d + d + 2d - 4 = 6d
Add d to 9d
10d+2d-4=6d
Add 2d to 10d
12d-4=6d
Subtract 12d from both sides
-4=-6d
Divide -6 on both sides
Final Answer: 4/6 or 2/3 *Both answers are equivalent to each other.
Answer Link
Photon
Photon Photon
  • 08-03-2017
Hello,

First, you have to solve this equation :
9d + d + 2d - 4 = 6d
9d + d + 2d - 6d = 4
6d = 4
d = 4/6 = 2*2/2*3 = 2/3

In short, the answer would be : A) 2/3

Hope this helps !
Answer Link

Otras preguntas

If 40% of a number is 56 what was the original number
what is the speed of an object at rest
What was the connection if any between Egypt geography and its achievements?
Who might be the main characters in a world parents type of creation story? a turtle and a raven a powerful god and a human the sky and the earth the spirits of
What kind of scholar studies objects left behind by humans?
what is 45 divided by two thirds
Which sentence contains an infinitive or infinitive phrase? A. Visit us next week and tell us about your trip. B. Tamar is planning to go to the zoo near her
What is 25 divided by 1280
the sum of three numbers is 79. The second number is 5 times the first, while the third is 16 more than the first. Find the number
The earliest large cities in colonial north america were located