7/A=9

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Solution for 7/A=9 equation: 


D( A )

A = 0

A = 0

A = 0

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

7/A = 9 // - 9

7/A-9 = 0

7*A^-1 = 9 // : 7

A^-1 = 9/7

-1 < 0

1/(A^1) = 9/7 // * A^1

1 = 9/7*A^1 // : 9/7

7/9 = A^1

A = 7/9

A = 7/9

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