Mathematics, 17.12.2020 07:50 emmeaw245

If Kathy has x pens, and her friend gives her 3 more pens. Then, Kathy will have 12 pens altogether. How can you show the relationship between the numbers of pens?

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If Kathy has x pens, and her friend gives her 3 more pens. Then, Kathy will have 12 pens altogether....

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