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OpenStudy (anonymous):
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OpenStudy (anonymous):
OpenStudy (saifoo.khan):
im not sure, but we can use elimination too?
OpenStudy (aravindg):
multiply second eqn by 4 and subtract
OpenStudy (aravindg):
1st eqn from 2nd
OpenStudy (aravindg):
yep "elemination" is the word!
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OpenStudy (saifoo.khan):
|dw:1338956434876:dw|
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