3/(a-1)=8/a

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Solution for 3/(a-1)=8/a equation: 


D( a )

a-1 = 0

a = 0

a-1 = 0

a-1 = 0

a-1 = 0 // + 1

a = 1

a = 0

a = 0

a in (-oo:0) U (0:1) U (1:+oo)

3/(a-1) = 8/a // - 8/a

3/(a-1)-(8/a) = 0

3/(a-1)-8*a^-1 = 0

3/(a-1)-8/a = 0

(3*a)/(a*(a-1))+(-8*(a-1))/(a*(a-1)) = 0

3*a-8*(a-1) = 0

8-5*a = 0

(8-5*a)/(a*(a-1)) = 0

(8-5*a)/(a*(a-1)) = 0 // * a*(a-1)

8-5*a = 0

8-5*a = 0 // - 8

-5*a = -8 // : -5

a = -8/(-5)

a = 8/5

a = 8/5

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