5+4d=7d-7

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Solution for 5+4d=7d-7 equation: 


d in (-oo:+oo)

4*d+5 = 7*d-7 // - 7*d-7

4*d-(7*d)+5+7 = 0

4*d-7*d+5+7 = 0

12-3*d = 0 // - 12

-3*d = -12 // : -3

d = -12/(-3)

d = 4

d = 4

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