Solve using cross multiplication method : 2y - x = 1; 5x - 9y + 3 = 0.
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(The allignment might be cringey)
x - 2y - 1 = 0 (Rearranging the eqn.)
5x - 9y + 3 = 0
x y 1
-2 -1 1 -2
-9 3 5 -9
Multiplying diagonally,
x y 1
----------- = ----------- = -------------
-6 - (9) -5 - (3) -9 - (-10)
Equating x and y with 1,
x 1
------------- = ------------
-6 - 9 -9 + 10
x = -15
-----
1
∴x = -15
y 1
------------ = ------------
-5 - 3 -9 + 10
y = -8
-----
1
∴y = -8
Hence, x = -15, y = -8
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