2/10=4/a-3

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Solution for 2/10=4/a-3 equation: 


D( a )

a = 0

a = 0

a = 0

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

2/10 = 4/a-3 // - 4/a-3

2/10-(4/a)+3 = 0

2/10-4*a^-1+3 = 0

-4*a^-1 = -16/5 // : -4

a^-1 = 4/5

-1 < 0

1/(a^1) = 4/5 // * a^1

1 = 4/5*a^1 // : 4/5

5/4 = a^1

a = 5/4

a = 5/4

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