2(-7d+9)=-52

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Solution for 2(-7d+9)=-52 equation: 


d in (-oo:+oo)

2*(9-7*d) = -52 // + 52

2*(9-7*d)+52 = 0

2*(9-7*d)+52 = 0

70-14*d = 0

70-14*d = 0

70-14*d = 0 // - 70

-14*d = -70 // : -14

d = -70/(-14)

d = 5

d = 5

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