13/20=60/a

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Solution for 13/20=60/a equation: 


D( a )

a = 0

a = 0

a = 0

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

13/20 = 60/a // - 60/a

13/20-(60/a) = 0

13/20-60*a^-1 = 0

-60*a^-1 = -13/20 // : -60

a^-1 = 13/1200

-1 < 0

1/(a^1) = 13/1200 // * a^1

1 = 13/1200*a^1 // : 13/1200

1200/13 = a^1

a = 1200/13

a = 1200/13

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