P/-7=4 - solution

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Solution for P/-7=4 equation:

P in (-oo:+oo)

P/(-7) = 4 // - 4

P/(-7)-4 = 0

-1/7*P-4 = 0 // + 4

-1/7*P = 4 // : -1/7

P = 4/(-1/7)

P = -28

P = -28

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