7/4=3/a

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Solution for 7/4=3/a equation: 


D( a )

a = 0

a = 0

a = 0

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

7/4 = 3/a // - 3/a

7/4-(3/a) = 0

7/4-3*a^-1 = 0

-3*a^-1 = -7/4 // : -3

a^-1 = 7/12

-1 < 0

1/(a^1) = 7/12 // * a^1

1 = 7/12*a^1 // : 7/12

12/7 = a^1

a = 12/7

a = 12/7

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