Q5 of 186 Page 4

Solve the following system of equations by elimination method:

, where x ≠ 0 and y ≠ 0

Given pair of linear equations is



Or 2x + 5y = 6xy …(i)


And


Or 4x – 5y = – 3xy …(ii)


On adding Eq. (i) and Eq. (ii), we get


2x + 5y + 4x – 5y = 6xy – 3xy


6x = 3xy



y = 2 and x = 0


On putting y = 2 in Eq. (ii), we get


2x + 5(2) = 6xy


2x + 10 = 6x(2)


2x + 10 = 12x 2x – 12x = – 10


– 10x = – 10


x = 1


On putting x = 0 , we get y = 0


Hence, x = 0,1 and y = 0,2 , which is the required solution.


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