solve for xy= x+y (putting y on one side)
thanks
2007-08-22 16:26:36 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
xy=x+y
subtract y from both sides leaving
xy-y=x
factor out the y
y(x-1)=x
y=x/(x-1)
an old math teacher:):):)
2007-08-22 16:34:30 · answer #1 · answered by plyboy 2 · 0⤊ 0⤋
xy=x+y
(xy)/x=(x+y)/x
y/x=y/x
so first you divide (xy) by x, that makes the x in this half of the equation disappear. then you divide (x+y) by x and that cancels out the x on that side of the equation. leaving y/x on both sides of the equal sign.
2007-08-22 23:39:59 · answer #2 · answered by kel m 2 · 0⤊ 0⤋
(xy) / xy = (x + y)/ (xy)
after simplifying 1 - 1/x = 1/y
2007-08-22 23:34:06 · answer #3 · answered by Chris L 1 · 0⤊ 0⤋
xy= x+y Id stay by diving both sides by y.
x = x/y + 1 Subtract 1 from both sides
x - 1 = x/y Invert the equation.
1/(x-1) = y/x Multiply both sides by x.
x/(x-1) = y There ya go.
2007-08-22 23:37:14 · answer #4 · answered by revolutionist1985 2 · 0⤊ 0⤋
xy - y = x
y(x - 1) = x
y = x / (x - 1)
2007-08-27 04:48:42 · answer #5 · answered by Como 7 · 0⤊ 0⤋
xy=x+y
xy-y=x
y(x-1)=x
y=x/(x-1)
Hope it helps!
2007-08-22 23:35:09 · answer #6 · answered by David G 3 · 0⤊ 0⤋