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anonymous

  • one year ago

Please help!

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @jim_thompson5910 don't suppose you could help me again?

  3. jim_thompson5910
    • one year ago
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    |dw:1434073358867:dw|

  4. jim_thompson5910
    • one year ago
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    |dw:1434073404684:dw|

  5. jim_thompson5910
    • one year ago
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    I got 40x(x+2) simply by multiplying the denominators. This trick only works if the GCF between each pair is 1.

  6. anonymous
    • one year ago
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    alright

  7. jim_thompson5910
    • one year ago
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    now use the LCD to clear out the fractions you'll multiply each fraction by the LCD |dw:1434073495765:dw|

  8. jim_thompson5910
    • one year ago
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    |dw:1434073532669:dw|

  9. jim_thompson5910
    • one year ago
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    |dw:1434073558091:dw|

  10. jim_thompson5910
    • one year ago
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    |dw:1434073580237:dw|

  11. jim_thompson5910
    • one year ago
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    after all of that cancellation, you are left with 40*(x+2) + 40x = x*(x+2)*9

  12. anonymous
    • one year ago
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    phew ok

  13. anonymous
    • one year ago
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  14. anonymous
    • one year ago
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    well that's what I got for x...

  15. jim_thompson5910
    • one year ago
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    me too

  16. jim_thompson5910
    • one year ago
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    x is an even integer, so we toss out that first solution

  17. anonymous
    • one year ago
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    so its 8?

  18. jim_thompson5910
    • one year ago
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    yep x = 8 and x+2 = 10 are your two integers

  19. jim_thompson5910
    • one year ago
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    you'll find that 1/8 + 1/10 = 9/40

  20. anonymous
    • one year ago
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    Thank you! can you help me with another? I'll tag you

  21. anonymous
    • one year ago
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    I only have two more! I've been working on this all day...

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