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Mathematics, 18.08.2019 22:10 vickyarroyo8888
If you buy six pens and one mechanical pencil, it will cost $9. if you buy four pens and two mechanical pencils, it will cost $8. how much does each pen and mechanical pencil cost?
if you let p=the cost of pen
m= the cost of mechanical pencil
6p+1m=$9
4p+2m=$8
p=? m=?
what do i do to find these variables? u
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If you buy six pens and one mechanical pencil, it will cost $9. if you buy four pens and two mechani...
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