Solve for x and y:

We have


and


where x≠0 and y≠0


Lets simplify these equations. Assuming 1/x = p and 1/y = q, we can rewrite them,



3p + 2q = 12 …(i)



2p + 3q = 13 …(ii)


To solve these equations, we need to make one of the variables (in both the equations) have same coefficient.


Lets multiply eq.(i) by 2 and eq.(ii) by 3, so that variable p in both the equations have same coefficient.


Recalling equations (i) & (ii),


3p + 2q = 12 [×2


2p + 3q = 13 [×3



- 5q = - 15


q = 3


Substitute q = 3 in eq.(i)/eq.(ii), as per convenience of solving.


Thus, substituting in eq.(i), we get


3p + 2(3) = 12


3p + 6 = 12


3p = 12 – 6 = 6


p = 2


Thus, p = 2 and q = 3


As p = 1/x,


2 = 1/x


x = 1/2


And q = 1/y


3 = 1/y


y = 1/3


Hence, we have x = 1/2 and y = 1/3


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