(47+13a)/(13+3a)

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Solution for (47+13a)/(13+3a) equation: 


D( a )

3*a+13 = 0

3*a+13 = 0

3*a+13 = 0

3*a+13 = 0 // - 13

3*a = -13 // : 3

a = -13/3

a in (-oo:-13/3) U (-13/3:+oo)

(13*a+47)/(3*a+13) = 0

13*a+47 = 0 // - 47

13*a = -47 // : 13

a = -47/13

a = -47/13

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