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math

posted by on .

Which of the following equations has the given solution set?

Solution set: Ø

A)-2m + 5 = 2m + 5

B)-2m + 5 = -2m + 5

C)-2m + 5 = -2m - 5

  • math - ,

    Solve each equation for m and see which gives an answer of zero.

    One is an identity with infinite solutions
    One is a false statement with no solutions.

  • math - ,

    sorry but do you think you could help me with that

  • math - ,

    I just did

  • math - ,

    Rearrange each equation, using normal algebra rules, to solve for m. Only one of the equations will lead to a solution, and it will be m = 0. That is what you are calling "Solution set: Ø "

    All the fancy talk about solution sets just makes the question look harder than it really is.

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