6/7d-8+2d=-66/7

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Solution for 6/7d-8+2d=-66/7 equation: 


d in (-oo:+oo)

(6/7)*d+2*d-8 = -66/7 // + -66/7

(6/7)*d+2*d-(-66/7)-8 = 0

(6/7)*d+2*d+66/7-8 = 0

20/7*d+10/7 = 0 // - 10/7

20/7*d = -10/7 // : 20/7

d = -10/7/20/7

d = -1/2

d = -1/2

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