(x - 2)/5 +y/2 = 6.............(1)
(x - 1)^2 -(y - 2)^2 = (x - y)(x + y) - 59...........(2)
First let us re-write both equations:
(x-2)/5 + y/2 = 6
Let us multiply by 10:
==> 2(x-2) + 5y = 60
==> 2x + 5y = 64 ........(3)
Now for equation (2):
(x-1)^2 - (y-2)^2 = (x-y)(x+y) - 59
==> x^2 - 2x + 1 - y^2 + 4y - 4 = x^2 - y^2 - 59
==> -2x + 4y - 3 = -59
==> -2x + 4y = -56 .........(4)
Now let us add (3) and (4):
==> 9y = 8
==> y = 8/9
Now to calculate x, we will substitute in (4):
2x = 4y + 56
==> x = 2y + 28
==> x= 2*8/9 + 28 = 16/9 + 28 = 268/9
==> x= 268/9
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