4(-7d+1)=-220

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Solution for 4(-7d+1)=-220 equation: 


d in (-oo:+oo)

4*(1-7*d) = -220 // + 220

4*(1-7*d)+220 = 0

4*(1-7*d)+220 = 0

224-28*d = 0

224-28*d = 0

224-28*d = 0 // - 224

-28*d = -224 // : -28

d = -224/(-28)

d = 8

d = 8

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