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anonymous

  • 5 years ago

Clear fractions or decimals, solve, and check . please show work for checking. 1/2 + 4m =3m – 5/2

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  1. anonymous
    • 5 years ago
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    m=-3

  2. anonymous
    • 5 years ago
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    I got the answer to the problem but i need help when checking!

  3. anonymous
    • 5 years ago
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    1/2+4(-3)=(-3)-5/2 1/2-12=-9-5/2

  4. anonymous
    • 5 years ago
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    replace m by -3 and get \[\frac{1}{2}+4\times -3=3\times -3+\frac{5}{2}\]

  5. anonymous
    • 5 years ago
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    to check your answer just plug in -3 for m and see if lhs = rhs

  6. anonymous
    • 5 years ago
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    \[\frac{1}{2}-12=-9-\frac{5}{2}\] \[-11\tfrac{1}{2}=-9-2\tfrac{1}{2}\] \[-11\tfrac{1}{2}=-11\tfrac{1}{2}\]

  7. anonymous
    • 5 years ago
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    shouldn't it equal 0=0

  8. anonymous
    • 5 years ago
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    no

  9. anonymous
    • 5 years ago
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    left hand side should equal right hand side , thats all

  10. anonymous
    • 5 years ago
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    If you start adding 5/2 to both sides, you are following the same logic you used when you worked the problem. This makes it less likely to catch any mistakes with your checking. You need to figure out what 1/2 - 12 is, and also what 9 - 5/2 is. Work it all the way until you have either something like 1 = 1

  11. anonymous
    • 5 years ago
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    sorry - i dont follow that

  12. anonymous
    • 5 years ago
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    okay thanks immyrep!

  13. anonymous
    • 5 years ago
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    thats ok

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