1/2(4d)+2=130

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Solution for 1/2(4d)+2=130 equation: 


d in (-oo:+oo)

4*(1/2)*d+2 = 130 // - 130

4*(1/2)*d-130+2 = 0

2*d-128 = 0 // + 128

2*d = 128 // : 2

d = 128/2

d = 64

d = 64

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