pollyesparza pollyesparza
  • 21-11-2018
  • Mathematics
contestada

Remember to check for extraneous solutions

2/v + 2/3 = v-6/3v

A) {-12}
B) {4}
C) {2}
D) {-2}

Respuesta :

gmany
gmany gmany
  • 21-11-2018

[tex]Domain:v\neq0\\\\\dfrac{2}{v}+\dfrac{2}{3}=\dfrac{v-6}{3v}\\\\\dfrac{2\cdot3}{v\cdot3}+\dfrac{2\cdot v}{3\cdot v}=\dfrac{v-6}{3v}\\\\\dfrac{6}{3v}+\dfrac{2v}{3v}=\dfrac{v-6}{3v}\\\\\dfrac{6+2v}{3v}=\dfrac{v-6}{3v}\iff6+2v=v-6\qquad\text{subtract 6 from both sides}\\\\2v=v-12\qquad\text{subtract v from both sides}\\\\\boxed{v=-12}\to\boxed{A.}[/tex]

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curlihairedbaby
curlihairedbaby curlihairedbaby
  • 26-11-2018

Answer:

The answer is A, sweetie


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