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9 June, 09:38

Does the equation 5x - (7x-1) = -3x+8 has exactly one solution

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Answers (2)
  1. 9 June, 09:53
    0
    Yes

    Step-by-step explanation:

    5x - (7x-1) = -3x+8

    5x - 7x + 1 = - 3x + 8

    -2x + 3x = 8 - 1

    x = 7
  2. 9 June, 10:07
    0
    x=7 so there is one solution

    Step-by-step explanation:

    5x - (7x-1) = -3x+8

    Distribute the minus sign

    5x - 7x + 1 = - 3x+8

    Combine like terms

    -2x + 1 = - 3x+8

    Add 3x to each side

    -2x+3x+1 = - 3x+3x+8

    x+1 = 8

    Subtract 1 from each side

    x+1-1=8-1

    x=7
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