ryanandnatalie ryanandnatalie
  • 17-02-2020
  • Mathematics
contestada

Find the value of the expression 21 - 2a if a = 3

Respuesta :

ujoy64
ujoy64 ujoy64
  • 17-02-2020

Answer:

15

Step-by-step explanation:

Substitute in the values

2 X 3 = 6

21 - 6 =15

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