45/30=9/a

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Solution for 45/30=9/a equation: 


D( a )

a = 0

a = 0

a = 0

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

45/30 = 9/a // - 9/a

45/30-(9/a) = 0

45/30-9*a^-1 = 0

-9*a^-1 = -3/2 // : -9

a^-1 = 1/6

-1 < 0

1/(a^1) = 1/6 // * a^1

1 = 1/6*a^1 // : 1/6

6 = a^1

a = 6

a = 6

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