danacalvo304
danacalvo304 danacalvo304
  • 01-03-2020
  • Mathematics
contestada

Simplify -9(1-10n) - 2(3n+9)

Respuesta :

zrh2sfo
zrh2sfo zrh2sfo
  • 04-03-2020

Answer:

3 (28 n - 9)

Step-by-step explanation:

Simplify the following:

-9 (1 - 10 n) - 2 (3 n + 9)

-9 (1 - 10 n) = 90 n - 9:

90 n - 9 - 2 (3 n + 9)

-2 (3 n + 9) = -6 n - 18:

90 n + -6 n - 18 - 9

Grouping like terms, 90 n - 6 n - 18 - 9 = (90 n - 6 n) + (-9 - 18):

(90 n - 6 n) + (-9 - 18)

90 n - 6 n = 84 n:

84 n + (-9 - 18)

-9 - 18 = -27:

84 n + -27

Factor 3 out of 84 n - 27:

Answer: 3 (28 n - 9)

Answer Link

Otras preguntas

Theories focused on learned responses to the environment are usually described as:
What value is missing from the table?
Approximately how long did the Islamic Empire maintain its rule?
The sum of the exterior angles of a pentagon equals________. 180° 270° 360° 540°
The temperature in Vancouver is -8°C, in Montreal it is -4°C, in Seattle it is -6°C, and in Buffalo it is -10°C. Which city is the coldest?
Nam 2 outstanding persons who are associated with the establishment of this religion group? the rastafarianism
I dont get it i need help
Which of the following words is not a synonym for epic? a. huge c. amazing b. impossible d. landmark
Which of the following is a business organization based on the belief that if individuals work together, they can help benefit one another? A. cooperative
Pembroke native flower seeds has a unique ________ or ways of doing things that evolve through shared values and beliefs