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OpenStudy (anonymous):
solve using substitution? 2x+y=4 and -2x+y=-4
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OpenStudy (anonymous):
FROM THE FIRST EQUATION WE GET Y=4-2X... SO YOU CAN PLUG IN (4-2X) INTO THE SECOND EQUATION WHERE YOU SEE Y... THEN SOLVE FOR X... DOES THAT HELP?
OpenStudy (anonymous):
no need to yell @Hadebesin
OpenStudy (anonymous):
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