1/9+9/a=1/a

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Solution for 1/9+9/a=1/a equation: 


D( a )

a = 0

a = 0

a = 0

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

9/a+1/9 = 1/a // - 1/a

9/a-(1/a)+1/9 = 0

9/a-a^-1+1/9 = 0

8*a^-1 = -1/9 // : 8

a^-1 = -1/72

-1 < 0

1/(a^1) = -1/72 // * a^1

1 = -1/72*a^1 // : -1/72

-72 = a^1

a = -72

a = -72

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