2(5d+4)=78

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Solution for 2(5d+4)=78 equation: 


d in (-oo:+oo)

2*(5*d+4) = 78 // - 78

2*(5*d+4)-78 = 0

2*(5*d+4)-78 = 0

10*d-70 = 0

10*d-70 = 0

10*d-70 = 0 // + 70

10*d = 70 // : 10

d = 70/10

d = 7

d = 7

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