0
2x - y = 55
x + 2y = 2
Multiplying the second equation by -2 gives us
2x - y = 55
-2x - 4y = -4
Adding both equations together gives us
-5y = 51
y = -10.2
Plugging that back into one of the original equations gives
x + 2(-10.2) = 2
x - 20.4 = 2
x = 22.4
So x = 22.4 and y = -10.2
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