compassionate
compassionate compassionate
  • 31-10-2017
  • Mathematics
contestada

[2/(n+2)] - (3/n+2) = 5

Solve by u-substitution

Relax

Respuesta :

Kalahira
Kalahira Kalahira
  • 11-11-2017
let n+2=u so, the equation became= [2/u]-[3/u]=5 => [(2+3)/u]=5 => 5/u=5 => u=5/5=1 thus, u=1 we know u=n+2 so, n+2=1 => n=1-2=-1 so, n=-1
Answer Link

Otras preguntas

what is another expression for 120-0.2(120)
The sender is the recipient of the message. True False
Why did the public demand that architects leave the support structures of the Washington Bridge open?
what does under secretion of growth hormone results in
What is another word for clever
On a​ Saturday, Ellen and Carin agree to leave their homes at the same​ time, drive toward each​ other, and have lunch when they meet. They both drive for 2 hou
how to calculate 3x^2+14x+8=
leciały kaczki: jedna na przedzie, dwie za nią, jedna z tyłu, dwie przed nią,jedna pomiędzy dwiema i trzy pod rząd. Ile kaczek leciało? Potrzebne na teraz !
A math class has studied the first 330 pages of their textbook. If this is 75% of the entire book, how many pages are in the book?
what is Ruby Bridges 4 son's name?