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x-2y = 1 => x = 2y+1

3xy-y2 = 8

Substitute x = 2y+1 into the second equation:

3y(2y+1)-y2 = 8

6y2+3y-y2 = 8

5y2+3y-8 = 0

Solving the above with the quadratic equation formula will give y values of: -8/5 and 1

Substitute these values into the first equation to find the values of x:

So the points of intersection are: (3, 1) and (-11/5, -8/5)

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