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x - 4y = 3
2x + 3y = 17
2x - 8y = 6
-------------------- -
11y = 11
y = 1
2x + 3y = 17
2x + 3(1) = 17
2x + 3 = 17
2x = 14
x = 7
2x - 3y = 2(7) - 3(1) = 14 - 3 = 11
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