15-b/2=-3 - solution

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Solution for 15-b/2=-3 equation:

b in (-oo:+oo)

15-(b/2) = -3 // + 3

3-(b/2)+15 = 0

18-1/2*b = 0 // - 18

-1/2*b = -18 // : -1/2

b = -18/(-1/2)

b = 36

b = 36

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