Q. 144.2( 10 Votes )

Find the value of x and y, when

i.

Answer :


If ,


Then a=e, b=f, c=g, d=h


Given


So, x + y = 8 and x - y = 4


Adding these two gives 2x = 12



y =2


Conclusion : x = 6 and y =2


ii.


Given,


So, 2x+5 = x-3 and 3y-7 = -5




Conclusion : x = -8 and y =


iii.




2x+3 = 7


2y-4 = 14


Conclusion : x = 2 and y = 9


(Given answer is wrong)


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