P/-4=-20 - solution

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Solution for P/-4=-20 equation:

P in (-oo:+oo)

P/(-4) = -20 // + 20

P/(-4)+20 = 0

20-1/4*P = 0 // - 20

-1/4*P = -20 // : -1/4

P = -20/(-1/4)

P = 80

P = 80

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