Posted by Amanda on Wednesday, November 11, 2009 at 1:56pm.
can someone please check my answer?
the answer I got was s= -69/-21 or 3.28
By what can you multiply that would cause one of the variable letters to drop out? Positive 10 of whatever plus negative 10 of whatever else would do the job. Your first inclination was pretty much right on the money. Make sure to multiply whatever you use all the way across.
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