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How do you write the sum of a number a and21?

Updated: 8/20/2019
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10y ago

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a+21

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10y ago
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Q: How do you write the sum of a number a and21?
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If you replace some number for "p", you can calculate the sum. Otherwise, just write it as "p+9" - you can't simplify this.If you replace some number for "p", you can calculate the sum. Otherwise, just write it as "p+9" - you can't simplify this.If you replace some number for "p", you can calculate the sum. Otherwise, just write it as "p+9" - you can't simplify this.If you replace some number for "p", you can calculate the sum. Otherwise, just write it as "p+9" - you can't simplify this.