2d-7-7d=-12

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Solution for 2d-7-7d=-12 equation:


d in (-oo:+oo)

2*d-(7*d)-7 = -12 // + 12

2*d-(7*d)-7+12 = 0

2*d-7*d-7+12 = 0

5-5*d = 0 // - 5

-5*d = -5 // : -5

d = -5/(-5)

d = 1

d = 1

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