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solve this problem by substitution 6x+7y=-75 x-y=7
lol. nfm On 10/14/12, monique wrote: > solve this problem by substitution > 6x+7y=-75 > x-y=7
Oct 14, 2012
nice try monique... The time and energy you used to find this site and post your message could have been used to solve the problem by now. If you really don't know how to do it, check out this Khan Academy video lesson...
Oct 28, 2012


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