2/9=5/a

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Solution for 2/9=5/a equation: 


D( a )

a = 0

a = 0

a = 0

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

2/9 = 5/a // - 5/a

2/9-(5/a) = 0

2/9-5*a^-1 = 0

-5*a^-1 = -2/9 // : -5

a^-1 = 2/45

-1 < 0

1/(a^1) = 2/45 // * a^1

1 = 2/45*a^1 // : 2/45

45/2 = a^1

a = 45/2

a = 45/2

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