SOLUTION: What is the answer in a linear equation problem like this: If i can do a job in 4 hour and we can do the same job in 2 hour, how long can you do the job alone?

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Question 633418: What is the answer in a linear equation problem like this: If i can do a job in 4 hour and we can do the same job in 2 hour, how long can you do the job alone?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,
i can do a job in 4 hour and we can do the same job in 2 hour
how long can you do the job alone?
Question states***PER hour Key
1/4 + 1/x = 1/2 |Multiplying thru by 4x so as all denominators = 1
x + 4 = 2x
4hr = x
and...

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