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March 5, 2015

March 5, 2015

Posted by **Tammy** on Friday, July 1, 2011 at 9:03am.

- Algebra -
**Jai**, Friday, July 1, 2011 at 10:26amby just observing the given equations, since they have the same slope, they are parallel and thus the system has NO solution since parallel lines never meet or has no intersection.

to prove this using substitution: first choose one equation. then choose one variable (for example, x) and express it in terms of the other variable (like this, x = ...), and finally substitute this expression for x to the other equation (the one that you did not choose). solve for y, and then for x.

hope this helps~ :)

- Algebra -
**Anonymous**, Friday, July 1, 2011 at 12:05pmindicated operation 8x^3-1 / 3x^2-6x+12 divide by 8x^2+4x+2 / 6x^3+48

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