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linear combinations, help please!
*xcaitlinx*
post Apr 29 2005, 03:22 PM
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well i was absent on the day that my math class learned this concept, and my teacher expects me to "teach myself" out of the textbook over the weekend...which is impossible. it's about using linear combinations (aka "elimination method") to solve the linear system. if i give an example, could someone please explain how to solve it? thanks biggrin.gif

directions: use linear combinations to solve the linear system.

ex: 2 - 7x = 9y
2y - 4x = 6

the only thing i figured out is that you have to switch around the equation to make it look similar--so it would be:

9y - 7x = 2
2y - 4x = 6

thanks again for the help =)
 

Posts in this topic
xcaitlinx   linear combinations   Apr 29 2005, 03:22 PM
sadolakced acid   after you make it look similar, make one of the va...   Apr 29 2005, 03:42 PM
xcaitlinx   thanks for the help! hehe damn algebra..   Apr 29 2005, 04:05 PM
Nicolatofu   ok it seems you've figured it out.. if you hav...   Apr 30 2005, 12:15 PM


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