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y-2x=-5
3y-x=5

y = -5 + 2x

3y-x = 5
so 3*(-5 + 2x) - x = 5

-15 + 6x - x = 5
-15 + 5x = 5
x = 20/5
x = 4

y = -5 + 2 *4
y = 3

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