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OpenStudy (anonymous):
FOUR PENCILS AND TWO PENS COST 0.74. SIX PENCILS AND FIVE PENS COST 1.53 FIND THE COST AF A PENCIL AND A PEN
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OpenStudy (anonymous):
p - pencil, r - pen 4p+2r = 0.74 6p+5r = 1.53 then solve by reduction
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