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Question

Find the value of x and y :
23x29y=98
29x23y=110

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Solution

Consider the given equation

23x29y=98.........(1)

29x23y=110.........(2)

Adding equation (1) and (2) to and we get,

23x29y=98

29x23y=110–––––––––––––––––

52x52y=208

52(xy)=208

xy=4........(3)

Subtracting equation (1) and (2) to and we get,

23x29y=98

29x23y=110–––––––––––––––––

+

6x6y=12

6(x+y)=12

x+y=2.........(4)

Solving equation (3) and (4) , and we get,

xy=4

x+y=2–––––––––onadding

2x=6

x=3

Put the value of x in equation (4) and we get,

3+y=2

y=23=1

Hence, this is the solution.


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