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anonymous

  • one year ago

Help me pwease :'( Equations With Variables On Both Sides

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  1. anonymous
    • one year ago
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    The work of a student trying to solve the equation 2(2x − 3) = 6 + 2x + 4 is shown below: Step 1: 2(2x − 3) = 6 + 2x + 4 Step 2: 4x − 3 = 10 + 2x Step 3: 4x − 2x = 10 + 3 Step 4: 2x = 13 Step 5: x = 6.5 In which step did the student first make an error and what is the correct step? Step 2: 4x − 6 = 10 + 2x Step 2: 4x − 3 = 2 + 2x Step 3: 4x + 2x = 10 + 3 Step 3: 4x − 2x = 10 - 3

  2. anonymous
    • one year ago
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    Ill make a guess ;-;

  3. welshfella
    • one year ago
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    can you see the error in step 2?

  4. anonymous
    • one year ago
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    o.o i thought it was step 2 xD

  5. anonymous
    • one year ago
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    i think ;-;

  6. anonymous
    • one year ago
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    its step 2

  7. welshfella
    • one year ago
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    4x + 3 is not correct - can you see why?

  8. welshfella
    • one year ago
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    * sorry 4x - 3 is not correct

  9. welshfella
    • one year ago
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    he distributed the 2 over the 2x - 3 and multiplied 2*2x = 4x that was correct. Then the mistake happened.

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spraguer (Moderator)
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