-d-10-7d=-66

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Solution for -d-10-7d=-66 equation: 


d in (-oo:+oo)

-d-(7*d)-10 = -66 // + 66

66-d-(7*d)-10 = 0

66-d-7*d-10 = 0

56-8*d = 0 // - 56

-8*d = -56 // : -8

d = -56/(-8)

d = 7

d = 7

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