First, get rid of fractions:

x - 2y = 4
x/3 - y = 4/3 |
3 |
x - 2y = 4
x - 3y = 4 |

Next, multiply the second equation by -1 to eliminate x:

x - 2y = 4
x - 3y = 4 |
(-1) |
x - 2y = 4
-x + 3y = -4 |

Adding gives y = 0. Substituting this result into the first equation gives x = 4.

Thus, the (unique) solution is (4, 0).

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