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please help with an algebra problem

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I am hypothesizing this is a question similar to ones one of my students was doing recently. Is (-2,1) a solution for the equations? Is the first equation y=-1/2x?. If it is, then yes, (-2,1) is a solution. If you plug in the values of -2 for x and 1 for y, then both equations work and the point is where the two lines intersect.

Hope this helps