12/(8-n)=3

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Solution for 12/(8-n)=3 equation: 


D( n )

8-n = 0

8-n = 0

8-n = 0

8-n = 0 // - 8

-n = -8 // * -1

n = 8

n in (-oo:8) U (8:+oo)

12/(8-n) = 3 // - 3

12/(8-n)-3 = 0

12/(8-n)+(-3*(8-n))/(8-n) = 0

12-3*(8-n) = 0

3*n-12 = 0

(3*n-12)/(8-n) = 0

(3*n-12)/(8-n) = 0 // * 8-n

3*n-12 = 0

3*n-12 = 0 // + 12

3*n = 12 // : 3

n = 12/3

n = 4

n = 4

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