anonymous
  • anonymous
If (a+4b)/(5a-7b)=2, find the value of (3a-7b)/(a+b).
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
(a+4b)/(5a-7b)=2 a+4b=10a-14b 9a=18b a=2b
anonymous
  • anonymous
right?
zzr0ck3r
  • zzr0ck3r
solve for a, then use that to solve for the other expression

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anonymous
  • anonymous
Now, substitute a=2b in (3a-7b)/(a+b)
anonymous
  • anonymous
CAn u?
anonymous
  • anonymous
@sauravshakya I think I would end with variables in the answer. My teacher told me it would be a number value.
anonymous
  • anonymous
Yes the answer will be number value
anonymous
  • anonymous
@zzr0ck3r Can you explain how?
anonymous
  • anonymous
Just try it
zzr0ck3r
  • zzr0ck3r
just work it through
anonymous
  • anonymous
@sauravshakya OH! I see now. Thank you!!
anonymous
  • anonymous
Welcomx

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