SOLUTION: Need help with setting up equation for...Mary bought 2 notebooks and 3 pens for $14.50. Dan bought 1 notebook and 2 pens for $7.50. How much does one notebook cost?

Question 989589: Need help with setting up equation for...Mary bought 2 notebooks and 3 pens for $14.50. Dan bought 1 notebook and 2 pens for $7.50. How much does one notebook cost?
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Need help with setting up equation for...Mary bought 2 notebooks and 3 pens for $14.50. Dan bought 1 notebook and 2 pens for $7.50. How much does one notebook cost?
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2n + 3p = 14.50
n + 2p = 7.50
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Modify for elimination::
2n + 3p = 14.50
2n + 4p = 1500
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Subtract and solve for "p"::
p = $0.50 (cost of one pen)
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Solve for "n":
n + 2p = 7.50
n + 2*0.5 = 7.50
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n + 1 = 7.50
n = $6.50 (cost of one notebook)
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Cheers,
Stan H.
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
What sort of help?
I can send you $5.
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