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Question

Solve the system of equations:
37x+29y=13;29x+37y=53

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Solution

Given 37x+29y=13 ..........(i)
29x+37y=53 ............(ii)
Here, we observe that the coefficients of x and y in the first equation are interchanged in the second equation.
Adding these two equations we get:
37x+29y+29x+37y=53+13
66x+66y=66
x+y=1 ................(iii)

Subtracting eq (ii) from (i), we get:
37x+29y29x37y=53+13
8x8y=40
xy=5..... ...(iv)
Adding (iii) and (iv), we get:
x+y+xy=15
2x=4
x=2
Substitute the value of x in equation(iii), we get
2+y=1
y=1+2
y=3
Hence, x=2,y=3 is the solution of the given system of equations.


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