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5 September, 22:29

Kia purchased 3 pounds of grapes and spent $11.63 on other items. She spent a total of $20. She used the following steps to find the cost of each pound of grapes.

When Kia subtracts 11.63 from both sides, what does the difference represent?

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  1. 5 September, 22:45
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    3x + 11.63 = 20

    3x + 11.63 - 11.63 = 20 - 11.63

    3x = 8.37

    by subtracting the 11.63 from both sides, this tells us how much the grapes cost ... not per lb., but for the total of all the grapes.
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