5/a+4-2/a-7=0

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Solution for 5/a+4-2/a-7=0 equation: 


D( a )

a = 0

a = 0

a = 0

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

5/a-(2/a)-7+4 = 0

5/a-2*a^-1-7+4 = 0

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

a^-1 = 1

-1 < 0

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

1 = 1*a^1 // : 1

1 = a^1

a = 1

a = 1

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