Question 150792
{{{P = 6/7xy}}}
plug in P, x and y


7=6/7(-1)(-6)


7=6/42
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Try one of these:


{{{P= -(x+y)}}}   


P = 7 when x = –1 and y = –6.


7=-(-1+-6)
7=-(-7)
7=7


or the latter:


{{{P=(7/6)(xy/1)}}} (which perhaps is what you meant from the start)


7=7/6 times 6
7=7