solve the equation by elimination method : x+y/xy = 9/2 , x-y/xy = 3/2
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Step-by-step explanation:
x+y/xy=9/2
2x+2y=9xy
x-y/xy=3/2
2x-2y=3xy
solving
2x+2y=9xy
2x-2y=3xy
----------------
4x=12xy
12xy-4x=0
4x(3y-1)=0
3y=1
y=1/3
finding x
2x-2/3=3x/3
6x-2/3=x
6x-2=3x
6x-3x= 2
3x=2
x=2/3
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