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

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

asked May 8, 2021 190k views

5 votes

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

Mathematics
college

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2 Answers

3 votes

Answer:

Explanation:

15 im sure

Dan G Nelson answered May 10, 2021

by Dan G Nelson

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3 votes

Answer:

15

Explanation:

$21-2a \\a =3\\21 -2(3)\\21-6\\15$

Maze answered May 13, 2021

by Maze

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