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**SC** on
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Find the point of intersection between y=2-(1/2)x and y=1+ax. (a=alpha sign). You answer will be a point in the xy plane whose coordinates involve the unknown a .

My work so far:

I set the two equations equal to each other because they intersect.

1+ax=2-(1/2)x

and I got,

(-1)/( (-1/2)-a )=x

how do I find y?

Do I plug in what i found for x into one of the equation? Please help!