3d-3/7+3d=-255/7

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Solution for 3d-3/7+3d=-255/7 equation: 


d in (-oo:+oo)

3*d+3*d-(3/7) = -255/7 // + -255/7

3*d+3*d-(3/7)-(-255/7) = 0

3*d+3*d-3/7+255/7 = 0

6*d+36 = 0 // - 36

6*d = -36 // : 6

d = -36/6

d = -6

d = -6

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