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anonymous

  • one year ago

How many solutions does the equation −3y + 3y + 4 = 4 have?

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  1. welshfella
    • one year ago
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    what do you think?

  2. welshfella
    • one year ago
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    try plugging in y = 1,2 and 3 and see what you get

  3. anonymous
    • one year ago
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    infinitly many

  4. anonymous
    • one year ago
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    @welshfella

  5. welshfella
    • one year ago
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    right

  6. anonymous
    • one year ago
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    The work of a student to solve the equation 3(3y − 8) = 10 + 3y is shown below: Step 1: 3(3y − 8) = 10 + 3y Step 2: 6y − 5 = 10 + 3y Step 3: 3y − 5 = 10 Step 4: 3y = 15 Step 5: y = 5 In which step did the student first make an error and what is the correct step?

  7. anonymous
    • one year ago
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    can you help me with one more?

  8. welshfella
    • one year ago
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    any real number can be substituted for y and the equation will still hold

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spraguer (Moderator)
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