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Twice a number, decreased by 9 is 12

Twice a number, decreased by 9 is 12
asked 79.1k views
3 votes
Twice a number, decreased by 9 is 12

asked
User Kjg
by
8.1k points

2 Answers

4 votes

Answer:

10.5

Explanation:

2x-9=12

2x=12+9

2x=21

x=21/2

x=10.5

answered
User Azerole
by
7.9k points
4 votes

Answer:

10.5

Explanation:

answered
User Daniel Heinrich
by
8.6k points
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