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December 21, 2014

December 21, 2014

Posted by **Vee** on Thursday, January 31, 2013 at 10:59am.

x-4y =-5

-2x + 9y = 125

- algebra -
**PsyDAG**, Thursday, January 31, 2013 at 5:35pmI don't know if I am using the same form or "Gauss-Jordan" elimination.

2x - 8y = -10

-2x + 9y = 125

Add the two equations.

y = 115

Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.

- algebra -
**Vee**, Thursday, January 31, 2013 at 8:35pmThank you greatly!

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