emmzzzz
emmzzzz
23-10-2014
Mathematics
contestada
what is 7n-20=9(4n+1) ????
Respuesta :
luana
luana
23-10-2014
[tex]7n-20=9(4n+1)\ \ \ \ | omit\ the\ bracket\\\\ 7n-20=36n+9\ \ \ | add\ 20\\\\ 7n=36n+29\ \ \ | subtract\ 36n\\\\ -29n=29\ \ \ | divide\ by\ -29\\\\ n=-1\\\\Solution\ is\ n=-1.[/tex]
Answer Link
ZackFry
ZackFry
23-10-2014
7n - 20 = 9(4n + 1)
7n - 20 = 36n + 9
-7n - 20 = 36n - 7n + 9
-20 = 29n + 9
-20 - 9 = 29n - 9
-29= 29n
29n = -29
n = -1
Answer Link
VER TODAS LAS RESPUESTAS ( 38+ )
Otras preguntas
The exchange of carbon dioxide and oxygen takes place in the lungs. The specific site of gas exchange is the _____. alveoli nephron neuron synapse
What is the probability that he got a heads (round to the nearest hundredth)?
On average,how much of the suns energy that reaches earths outer atmosphere is reflected back into space?
The Japanese invasion of Manchuria kicked off this war. Sino-Russian War Sino-Japanese War Russo-Japanese War Chinese Civil War
In a(n) ____, local rulers governed but western powers were in actual control.
Hello, I need some help with my english work. Passage: Yoyo didn't need much encouragement. **She put her nose to the fire**, as her mother would have said, and
What does the term human rights mean to you
Owners of digital cameras have to buy memory cards in order to use the cameras. Cameras and memory cards are A. substitutes. B. complements C. unrelated. D. ela
The comitatus was a bond between a king and his nobles (called thegns). a. True b. False
What is the capital of France? 1=Nice 2=Lyon 3= Paris
