4/a=7/7/2

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Solution for 4/a=7/7/2 equation: 


D( a )

a = 0

a = 0

a = 0

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

4/a = (7/7)/2 // - (7/7)/2

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

4/a-1/2 = 0

4*a^-1 = 1/2 // : 4

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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