253/63=3d-5/7d-5/9

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Solution for 253/63=3d-5/7d-5/9 equation: 


d in (-oo:+oo)

253/63 = 3*d-((5/7)*d)-(5/9) // - 3*d-((5/7)*d)-(5/9)

(5/7)*d-(3*d)+253/63+5/9 = 0

(5/7)*d-3*d+253/63+5/9 = 0

32/7-16/7*d = 0 // - 32/7

-16/7*d = -32/7 // : -16/7

d = -32/7/(-16/7)

d = 2

d = 2

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