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Abid3127

  • 3 years ago

solving linear equation -7/8=-5/6z

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  1. geerky42
    • 3 years ago
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    Divide both sides by -5/6 to isolate z.

  2. Abid3127
    • 3 years ago
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    i tried but i got way different answer then book

  3. geerky42
    • 3 years ago
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    Can you show me your work?

  4. Abid3127
    • 3 years ago
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    -0.875*0.833=z 0.729=z

  5. geerky42
    • 3 years ago
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    Let me show you. \[-\dfrac{7}{8} = -\dfrac{5}{6}z\]Divide both sides by \(-\dfrac{5}{6}\). \[\dfrac{-\dfrac{7}{8}}{-\dfrac{5}{6}} = \dfrac{-\dfrac{5}{6}z}{-\dfrac{5}{6}}\] \[\dfrac{-\dfrac{7}{8}}{-\dfrac{5}{6}} = z\] Is this clear?

  6. Abid3127
    • 3 years ago
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    but how the answer is 21/20

  7. Abid3127
    • 3 years ago
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    now i got it -7/8*6/5=z z=42/40 or 21/20

  8. geerky42
    • 3 years ago
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    Glad you got it.

  9. Abid3127
    • 3 years ago
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    thanks greeky42

  10. geerky42
    • 3 years ago
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    You're welcome.

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