40/a=5

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Solution for 40/a=5 equation: 


D( a )

a = 0

a = 0

a = 0

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

40/a = 5 // - 5

40/a-5 = 0

40*a^-1 = 5 // : 40

a^-1 = 1/8

-1 < 0

1/(a^1) = 1/8 // * a^1

1 = 1/8*a^1 // : 1/8

8 = a^1

a = 8

a = 8

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