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math problem

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please solve

4x is greater than or equal to 20

  • math problem - ,

    subtract 4 from each side and then you are left with x is greater than or equal to 16

  • math problem - ,

    Since it's 4x (not 4+x) you need to divide by 4, not subtract 4:

    4x >= 20
    x >= 5

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