2d+7=-13

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Solution for 2d+7=-13 equation: 


d in (-oo:+oo)

2*d+7 = -13 // + 13

2*d+7+13 = 0

2*d+20 = 0 // - 20

2*d = -20 // : 2

d = -20/2

d = -10

d = -10

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