medinasamantha723 medinasamantha723
  • 14-02-2020
  • Mathematics
contestada

The sum of 21 and twice a number

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cdunleavy23126 cdunleavy23126
  • 14-02-2020
your answer is 7 and 14, 14+7 is 21. 14 is double 7
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LukeG1
LukeG1 LukeG1
  • 14-02-2020

Answer:

21 + 2x

Step-by-step explanation:

Sum = addition = +

Let's say the number is x

21 + 2 * x

Multiply 2 by x

21 + 2x

Hope this helps :)

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