1.

Solve for x and y​

Answer»

ANSWER:

<klux>X</klux> =  \frac{2}{3}

y =  \frac{1}{3}

Step-by-step EXPLANATION:

=  >  \frac{x + y}{xy}  =  \frac{9}{2}  \\  =  > 2x + 2y = 9xy -  -  - (i)

And ALSO,

=  >  \frac{x - y}{xy}   = \frac{3}{2}  \\  =  > 2x - 2y = 3xy -  -  -  - (ii)

Solving (i) and (ii)

{ =  > (2x + 2y) - (2x - 2y) = 9xy - 3xy}

=  > 2x + 2y - 2x + 2y = 6xy

=  > 4y = 6xy

=  >  \frac{4y}{6y}  = x

=  > x =  \frac{2}{3}

Substituting x in (i) :-

=  > 2x + 2y = 9xy

=  > 2(x + y) = 9xy

=  > 2( \frac{2}{3}  + y) = 9( \frac{2}{3} )y

=  > 2( \frac{2 + 3y}{3} ) =  \frac{18y}{3}

=  >  \frac{4 + 6y}{3} =  \frac{18y}{3}

=  > 4 + 6y = 18y

=  > 4 = 18y - 6y

=  > 4 = 12y

=  > y =  \frac{1}{3}



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