Which of the following equations have exactly one solution? Choose all answers that apply: Choose all

Which of the following equations have exactly one solution? Choose all answers that apply: Choose all answers that apply: (Choice A) A 2x-31=2x-31 (Choice B) B 2x-31=-2x-31 (Choice C) C 2x+31=2x-31 (Choice D) D 2x-2=2x-31

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  1. B 2x - 31 = -2x - 31 have exactly one solution

    Step-by-step explanation:

    Which of the following equations have exactly one solution?

    Choose all answers that apply:

    A 2x - 31 = 2x - 31

    B 2x - 31 = -2x - 31

    C 2x + 31 = 2x - 31

    D 2x - 2 = 2x - 31

    A. 2x - 31 = 2x - 31

    2x-31=2x-31

    Collect like terms

    2x-2x= -31+31

    0=0

    Infinite number of solutions

    B 2x - 31 = -2x - 31

    2x - 31 = -2x - 31

    Collect like terms

    2x+2x=-31+31

    4x=0

    x=0

    One solution

    C 2x + 31 = 2x - 31

    2x + 31 = 2x - 31

    Collect like terms

    2x-2x= -31-31

    0= -62

    No solution

    D 2x - 2 = 2x - 31

    2x - 2 = 2x - 31

    Collect like terms

    2x-2x= -31+2

    0= -29

    No solution

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