-2-4d-7d=9

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Solution for -2-4d-7d=9 equation: 


d in (-oo:+oo)

-(4*d)-(7*d)-2 = 9 // - 9

-(4*d)-(7*d)-9-2 = 0

-4*d-7*d-9-2 = 0

-11*d-11 = 0 // + 11

-11*d = 11 // : -11

d = 11/(-11)

d = -1

d = -1

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