(7t-14)/(2-t)

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Solution for (7t-14)/(2-t) equation: 


D( t )

2-t = 0

2-t = 0

2-t = 0

2-t = 0 // - 2

-t = -2 // * -1

t = 2

t in (-oo:2) U (2:+oo)

(7*t-14)/(2-t) = 0

7*t-14 = 0 // + 14

7*t = 14 // : 7

t = 14/7

t = 2

t in { 2} 

t belongs to the empty set

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