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anonymous

  • one year ago

find the solution of this system of equation. -7x-6y=59 and -8x-6y=58

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  1. anonymous
    • one year ago
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    Ya want matrix or the algebraic flavor?

  2. LynFran
    • one year ago
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    |dw:1438109169083:dw|

  3. anonymous
    • one year ago
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    algebraic I can understand better, Thanks you

  4. LynFran
    • one year ago
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    whats 59-58=?

  5. anonymous
    • one year ago
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    is it x=1

  6. LynFran
    • one year ago
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    correct

  7. LynFran
    • one year ago
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    now sub x=1 into th 1st eq. to find y...what did you get?

  8. LynFran
    • one year ago
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    |dw:1438109572340:dw|

  9. anonymous
    • one year ago
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    \[(-7x-6y)-(-8x-6y)=59-1\] \[x=1\]

  10. anonymous
    • one year ago
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    another typo again... should be 59-58

  11. LynFran
    • one year ago
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    |dw:1438109689987:dw|

  12. anonymous
    • one year ago
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    \[-7(1)-6y=59\] \[6y = 59+7\] y = [Fill in the blank]

  13. LynFran
    • one year ago
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    @saseal where did the negative from the 6 go....?

  14. anonymous
    • one year ago
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    is y=11

  15. LynFran
    • one year ago
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    it shd by y=-11 -7-59=-66/6=-11

  16. anonymous
    • one year ago
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    so confusing

  17. LynFran
    • one year ago
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    |dw:1438110367007:dw|

  18. LynFran
    • one year ago
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    |dw:1438110380188:dw|

  19. anonymous
    • one year ago
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    yes...looks like another typo :( sry. Happened alot today

  20. anonymous
    • one year ago
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    ok I see. Thanks again, it seems like I need to keep trying it to get it @LynFran

  21. LynFran
    • one year ago
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    ok Welcome

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