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anonymous

  • 5 years ago

find x, give your answer in fractions: x = 5 * (2-x) + 1

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  1. anonymous
    • 5 years ago
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    anyone who helps me will get a new fan :)

  2. anonymous
    • 5 years ago
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    I know the answer is 1.83333333333 but i need it in fractions

  3. anonymous
    • 5 years ago
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    \[x=5(2-x)+1\rightarrow x=10-5x+1\]Add 5x to both sides,\[6x=10+1 \rightarrow 6x=11\]Divide both sides by 6,\[x=\frac{11}{6}\]

  4. anonymous
    • 5 years ago
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    do i leave it like this, or do i have to make it like 1 5/6 ?

  5. anonymous
    • 5 years ago
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    Depends...it doesn't really matter unless the question stipulates. Mathematicians leave fractions in this form - 'improper fraction' - because we'd have to put it into this form anyway to do any further mathematics on it. If you like, you can reduce it down to \[x=\frac{11}{6}=\frac{6+5}{6}=\frac{6}{6}+\frac{5}{6}=1+\frac{5}{6}=1\frac{5}{6}\]but I wouldn't bother.

  6. anonymous
    • 5 years ago
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    ok, thanx, so in an exam i would just leave answers in improper fractions

  7. anonymous
    • 5 years ago
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    Just check with your teacher on what they want you to do. Like I said, UNLESS the question says to do something with it, just leave it - 11/6 and 1+5/6 are equivalent numbers.

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