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Mello

  • 2 years ago

If (a+4b)/(5a-7b)=2, find the value of (3a-7b)/(a+b).

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  1. sauravshakya
    • 2 years ago
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    (a+4b)/(5a-7b)=2 a+4b=10a-14b 9a=18b a=2b

  2. sauravshakya
    • 2 years ago
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    right?

  3. zzr0ck3r
    • 2 years ago
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    solve for a, then use that to solve for the other expression

  4. sauravshakya
    • 2 years ago
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    Now, substitute a=2b in (3a-7b)/(a+b)

  5. sauravshakya
    • 2 years ago
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    CAn u?

  6. Mello
    • 2 years ago
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    @sauravshakya I think I would end with variables in the answer. My teacher told me it would be a number value.

  7. sauravshakya
    • 2 years ago
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    Yes the answer will be number value

  8. Mello
    • 2 years ago
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    @zzr0ck3r Can you explain how?

  9. sauravshakya
    • 2 years ago
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    Just try it

  10. zzr0ck3r
    • 2 years ago
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    just work it through

  11. Mello
    • 2 years ago
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    @sauravshakya OH! I see now. Thank you!!

  12. sauravshakya
    • 2 years ago
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    Welcomx

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