7/q=8/9

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Solution for 7/q=8/9 equation: 


D( q )

q = 0

q = 0

q = 0

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

7/q = 8/9 // - 8/9

7/q-(8/9) = 0

7/q-8/9 = 0

7*q^-1 = 8/9 // : 7

q^-1 = 8/63

-1 < 0

1/(q^1) = 8/63 // * q^1

1 = 8/63*q^1 // : 8/63

63/8 = q^1

q = 63/8

q = 63/8

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