30/a=8/20

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Solution for 30/a=8/20 equation: 


D( a )

a = 0

a = 0

a = 0

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

30/a = 8/20 // - 8/20

30/a-(8/20) = 0

30/a-2/5 = 0

30*a^-1 = 2/5 // : 30

a^-1 = 1/75

-1 < 0

1/(a^1) = 1/75 // * a^1

1 = 1/75*a^1 // : 1/75

75 = a^1

a = 75

a = 75

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