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Evaluate

0 votes

(xy)/(x-y) when x = 3, y = -6

asked Dec 28, 2017 in PRE-ALGEBRA by anonymous
reshown Dec 28, 2017 by bradely

1 Answer

0 votes

Substitute x  =  3,  y  = - 6 in the expression (xy)/(x-y)

(xy)/(x-y)   =   [ (3)(-6) ] / [(3) - (-6) ]

                 =   [ -18 ] / [3 + 6 ]

                 =   [ -18 ] / [9 ]

(xy)/(x-y)   =  -2

answered Dec 28, 2017 by homeworkhelp Mentor
edited Dec 28, 2017 by bradely

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