5-7d+2d=15

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Solution for 5-7d+2d=15 equation: 


d in (-oo:+oo)

2*d-(7*d)+5 = 15 // - 15

2*d-(7*d)-15+5 = 0

2*d-7*d-15+5 = 0

-5*d-10 = 0 // + 10

-5*d = 10 // : -5

d = 10/(-5)

d = -2

d = -2

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