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24-06-2020
Mathematics

contestada

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

Respuesta :

ZJSG09112007 ZJSG09112007

24-06-2020

Answer:

15

Step-by-step explanation:

[tex]21-2a \\a =3\\21 -2(3)\\21-6\\15[/tex]

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aayatalawi1 aayatalawi1

17-12-2020

Answer:

Step-by-step explanation:

15 im sure

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