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1/2 y -2/3x = 3y -2x
-1/3 y -17/4 x = 0 | *3
-5/2 y -8/3 x =0 |*-2/5
-y -51/4 x = 0
y +16/15 x = 0
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(16/15 -51/4)x = 0
x = 0
y +16/15 *0 = 0
y = 0