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OpenStudy (anonymous):
use the elimination method to solve the system of equation a + 7b=7 a +2b=-3
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OpenStudy (tkhunny):
Multiply the first by -1 and add the two equations. See if something magical happens.
OpenStudy (anonymous):
can you give me an example please
geerky42 (geerky42):
|dw:1362371882527:dw||dw:1362371910604:dw|
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