3+8/7d=-1

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Solution for 3+8/7d=-1 equation: 


d in (-oo:+oo)

(8/7)*d+3 = -1 // + 1

(8/7)*d+1+3 = 0

8/7*d+4 = 0 // - 4

8/7*d = -4 // : 8/7

d = -4/8/7

d = -7/2

d = -7/2

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