-4d-2-7d=-90

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Solution for -4d-2-7d=-90 equation: 


d in (-oo:+oo)

-4*d-(7*d)-2 = -90 // + 90

90-4*d-(7*d)-2 = 0

90-4*d-7*d-2 = 0

88-11*d = 0 // - 88

-11*d = -88 // : -11

d = -88/(-11)

d = 8

d = 8

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