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Jackie and a classmate spent a total of 20 hrs working on a chemistry project. Jackie’s classmate spent 2 hrs less time working on the project than Jackie. How long did Jackie w…

Jackie and a classmate spent a total of 20 hrs working on a chemistry project. Jackie’s classmate spent 2 hrs less time working on the project than Jackie. How long did Jackie w…
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Jackie and a classmate spent a total of 20 hrs working on a chemistry project. Jackie’s classmate spent 2 hrs less time working on the project than Jackie. How long did Jackie work on the project?

asked
User Vishal Kumar Singhvi
by
7.0k points

1 Answer

3 votes

Answer:

x = 11

Explanation:

x + (x - 2) = 20

2x - 2 = 20

2x - 2 + 2 = 22 + 2

2x = 22

x = 11

answered
User Acesmndr
by
8.6k points
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