(8d-9)/(7+3d)

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Solution for (8d-9)/(7+3d) equation: 


D( d )

3*d+7 = 0

3*d+7 = 0

3*d+7 = 0

3*d+7 = 0 // - 7

3*d = -7 // : 3

d = -7/3

d in (-oo:-7/3) U (-7/3:+oo)

(8*d-9)/(3*d+7) = 0

8*d-9 = 0 // + 9

8*d = 9 // : 8

d = 9/8

d = 9/8

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