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OpenStudy (anonymous):
2m+5n=12 -6n+m=-11
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hartnn (hartnn):
Multiply second equation by -2 and tell me what u get.
OpenStudy (anonymous):
uh 12n+2m=22? i don't understand where the -2 came from though
hartnn (hartnn):
sure 2m or -2m ?? i wanted to make the co-efficient of m as -2(the co-efficient of m in first equation is +2), so that when i add 2 equations, m gets eliminated (-2m+2m=0) got this ?
OpenStudy (anonymous):
ohhh okay. what do i do now?
hartnn (hartnn):
2nd equation : 12n-2m=22 1st equation : 5n +2m =12 ADD them.
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OpenStudy (anonymous):
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