Posted by **lisa** on Saturday, January 9, 2010 at 6:25pm.

I am supposed to figure out if these are consistent or inconsistant ,but I am arriving at only one point for my answer, telling me this is constant but dependent am I doing something horribly wrong?

8x-9y=-63

9y-8x=63

- math -
**drwls**, Saturday, January 9, 2010 at 6:58pm
One equation can be derived from the other, by multiplying both sides by -1 and rearranging. They are consistent equations, and there is no unique solution. It is the same as having only one equation for two variables.

- math -
**lisa**, Saturday, January 9, 2010 at 7:02pm
I think they are independent am I right?And would my answer be no solution or a point, my worksheet specifies for no solution, a point, and many solutions...I marked a point.

- math -
**drwls**, Saturday, January 9, 2010 at 7:04pm
They are not independent. There are many (actually, infinite) solutions

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