Solve Ratio Question: (3a + 3b)/(a - b) with a/b = 2/5 | Get Homework Help

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Homework Statement



Calculate: (3 a + 3 b)/(a - b) If a/b = 2/5

No attempts, I don't know how to solve this.

Help?
 

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Oh my god :D

Thanks for the hint and the welcome :)
 
K + l + m = 34.
K/l = 1/4
l/m = 1/3

l = ?

Is it 8 ?
 
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