monika22 monika22
  • 30-01-2020
  • Mathematics
contestada

What is an expression for “the sum of (a+7) and 3a”

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macrouser2019 macrouser2019
  • 30-01-2020
If you are correcting to a=7 to where 3a = 21 as their are 3 a's which is 7
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