2/5d-7-3d=-311/50

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Solution for 2/5d-7-3d=-311/50 equation: 


d in (-oo:+oo)

(2/5)*d-(3*d)-7 = -311/50 // + -311/50

(2/5)*d-(3*d)-(-311/50)-7 = 0

(2/5)*d-3*d+311/50-7 = 0

-13/5*d-39/50 = 0 // + 39/50

-13/5*d = 39/50 // : -13/5

d = 39/50/(-13/5)

d = -3/10

d = -3/10

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