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12 February, 00:05

The cost of a pen is three times the cost of a pencil. the cost of 4 pencils and 3 pens is $9.75. what is the cost of a pencil? the cost of a pen is three times the cost of a pencil. the cost of 4 pencils and 3 pens is $9.75. what is the cost of a pencil?

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  1. 12 February, 03:45
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    9.75=4x+3 (3x)

    9.75=4x+9x

    9.75=13x

    x=.75

    One pencil costs $0.75
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