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OpenStudy (anonymous):
substitution and elimination : 1. 2x-y+3z=15, x-y+5z=19 and 4x+2y+7z=25
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OpenStudy (anonymous):
i would choose elimination
OpenStudy (anonymous):
NickR: okey, please help me
OpenStudy (anonymous):
what do you need help with?
OpenStudy (anonymous):
do it with elimination or substitution
OpenStudy (anonymous):
do you not know how to use these methods?
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OpenStudy (anonymous):
I don't understand
OpenStudy (anonymous):
maybe this can help http://www.wallace.ccfaculty.org/book/4.4%20Three%20Varaibles.pdf
OpenStudy (anonymous):
chloe123: can you answer it ? NickR: can you answer my question?
OpenStudy (anonymous):
i'm trying :P
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